332354 + Interview Questions in Secondary School in Math

1.	Plzz solve this plzzzzzzzzz
Answer» Answer: 38 Step-by-step EXPLANATION: an = 3N+ 2 N= 12 so, 3(12) +2 36+2 = 38

1.

Plzz solve this plzzzzzzzzz

Answer»

Answer:

38

Step-by-step EXPLANATION:

an = 3N+ 2

N= 12

so, 3(12) +2

36+2

= 38

Discussion

2.	103/1010207ToneorFalse2Bushneppe wanted to sell kittens. (False)The boy felt sad because he didnot have enough money to buy the pupcort
Answer» ANSWER: the answer is TRUE UNDERSTAND

2.

103/1010207ToneorFalse2Bushneppe wanted to sell kittens. (False)The boy felt sad because he didnot have enough money to buy the pupcort

Answer»

ANSWER:

the answer is TRUE UNDERSTAND

Discussion

3.	15. Two taps A and B together fill a swimming poolin 15 hours. Taps A and Bare kept open for12 hours and then tap B is closed. It takesanother 8 hours for the swimming pool to befilled. How many hours does each tap require tofill the swimming pool?
Answer» ✪ Question :- ❦ Two taps A and B together fill a swimming pool in 15 hours. Taps A and BARE kept open for 12 hours and then TAP B is CLOSED. It takes another 8 hours for the swimming pool to be filled. How many hours does each tap require to fill the swimming pool ? ✰ Solution :- it is given that, Both Tap A and B can will the pool in 15 hours . That means , we can say that, ➺ (A + B) = 1/15 . ( per hour they fill ). Now, Both are opened for 12 hours and than B is closed , that means Rest was filled by A ALONE in 8 more hours . So, ⟿ 12(A+B) + 8A = 1 ( TOTAL ) Putting value of (A+B) here , we get, ⟿ 12 * (1/15) + 8A = 1 ⟿ 4/5 + 8A = 1 ⟿ 8A = 1 - 4/5 ⟿ 8A = 1/5 ⟿ A = 1/(58) ⟿ A = 1/40. So, A will* Fill alone the swimming pool in 40 hours. ____________________________________ Now, putting This value we get, ➳ A + B = 1/15 ➳ 1/40 + B = 1/15 ➳ B = 1/15 - 1/40 ➳ B = (8 - 3) /120 ➳ B = 5/120 ➳ B = 1/24 So, A will Fill alone the swimming pool in 24 hours. _____________

3.

15. Two taps A and B together fill a swimming poolin 15 hours. Taps A and Bare kept open for12 hours and then tap B is closed. It takesanother 8 hours for the swimming pool to befilled. How many hours does each tap require tofill the swimming pool?

Answer»

✪ Question :-

❦ Two taps A and B together fill a swimming pool

in 15 hours. Taps A and BARE kept open for

12 hours and then TAP B is CLOSED. It takes

another 8 hours for the swimming pool to be

filled. How many hours does each tap require to

fill the swimming pool ?

✰ Solution :-

it is given that, Both Tap A and B can will the pool in 15 hours .

That means , we can say that,

➺ (A + B) = 1/15 . ( per hour they fill ).

Now, Both are opened for 12 hours and than B is closed , that means Rest was filled by A ALONE in 8 more hours .

So,

⟿ 12(A+B) + 8A = 1 ( TOTAL )

Putting value of (A+B) here , we get,

⟿ 12 * (1/15) + 8A = 1

⟿ 4/5 + 8A = 1

⟿ 8A = 1 - 4/5

⟿ 8A = 1/5

⟿ A = 1/(5*8)

⟿ A = 1/40.

So, A will Fill alone the swimming pool in 40 hours.

____________________________________

Now, putting This value we get,

➳ A + B = 1/15

➳ 1/40 + B = 1/15

➳ B = 1/15 - 1/40

➳ B = (8 - 3) /120

➳ B = 5/120

➳ B = 1/24

So, A will Fill alone the swimming pool in 24 hours.

_____________

Discussion

4.	The roots of a quadratic equation are 3/2 and -1/5. find thequadratic equation.
Answer» Answer: USE X2-(a+b)+ab. You can get the REQ. EQN.

4.

The roots of a quadratic equation are 3/2 and -1/5. find thequadratic equation.

Answer»

Answer:

USE X2-(a+b)+ab.

You can get the REQ. EQN.

Discussion

5.	If the base area and volume of a cuboids are 80cm2 and 400cm3, find its height
Answer» Answer: 5cm Step-by-step explanation: Base AREA = l X b = 80 Volume = l x b x h = 400 = 80 x h = 400/80 = h = 5cm = h

5.

If the base area and volume of a cuboids are 80cm2 and 400cm3, find its height

Answer»

Answer:

5cm

Step-by-step explanation:

Base AREA = l X b = 80

Volume = l x b x h

= 400 = 80 x h

= 400/80 = h

= 5cm = h

Discussion

6.	Prove Intercept theorem
Answer» Answer: COPY and paste the link it was REAL HELPFUL when I NEEDED help. (NOT SPAM) this is a visual AID with description https://demonstrations.wolfram.com/AVisualProofOfThalessInterceptTheorem/

6.

Prove Intercept theorem

Answer»

Answer:

COPY and paste the link it was REAL HELPFUL when I NEEDED help. (NOT SPAM) this is a visual AID with description

https://demonstrations.wolfram.com/AVisualProofOfThalessInterceptTheorem/

Discussion

7.	Explain how to take lcm
Answer» Answer: This is an ideal method for larger numbers.This method is factoring both numbers down to the prime numbers that are multiplied to create that number as a product. For Example :- Let's say you're LOOKING for the least common multiple of 20 and 42. Here's how you would FACTOR them 20 = 2 X 2 x 5 and 42 = 2 x 3 x 7 If the number just occurs in one number, then it has one occurrence. Here is a list of the most occurrences of each prime number from the previous example 2 → 2 times 3 → 1 TIME 5 → 1 time 7 → 1 time Since 2 occurs twice, you'll have to multiply it twice. Here's what you should do to find the LCM: 2 x 2 x 3 x 5 x 7 = 420. Video of how to find LCM

7.

Explain how to take lcm

Answer»

Answer:

This is an ideal method for larger numbers.This method is factoring both numbers down to the prime numbers that are multiplied to create that number as a product.

For Example :- Let's say you're LOOKING for the least common multiple of 20 and 42. Here's how you would FACTOR them 20 = 2 X 2 x 5 and 42 = 2 x 3 x 7

If the number just occurs in one number, then it has one occurrence. Here is a list of the most occurrences of each prime number from the previous example 2 → 2 times 3 → 1 TIME 5 → 1 time 7 → 1 time

Since 2 occurs twice, you'll have to multiply it twice. Here's what you should do to find the LCM: 2 x 2 x 3 x 5 x 7 = 420.

Video of how to find LCM

Discussion

8.	√2/√2+√3-√5 rationalize the denominator
Answer» ANSWER: $\frac{ \sqrt{2} }{ \sqrt{2} + \sqrt{3} - \sqrt{5} }$ RATIONALIZE the DENOMINATOR $\frac{ \sqrt{2} }{ \sqrt{2} + \sqrt{3} - \sqrt{5} } \times \frac{ \sqrt{2} + \sqrt{3} + \sqrt{5} }{ \sqrt{2} + \sqrt{3} + \sqrt{5} } \\ = \frac{ \sqrt{2} ( \sqrt{2} + \sqrt{3} + \sqrt{5}) }{ {( \sqrt{2} + \sqrt{3} )}^{2} - 5} \\ = \frac{2 + \sqrt{6} + \sqrt{10} }{2 + 2 \sqrt{6} + 3 - 5} \\ = \frac{ \sqrt{2}( \sqrt{2} + \sqrt{3} + \sqrt{5} )}{2 \sqrt{6} } \\ = \frac{ \sqrt{2} + \sqrt{3} + \sqrt{5} }{2 \sqrt{3} } \\ = \frac{ \sqrt{2} + \sqrt{3} + \sqrt{5} }{2 \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ = \frac{ \sqrt{3}( \sqrt{2} + \sqrt{3} + \sqrt{5} )}{2 \times 3} \\ = \frac{ \sqrt{3} ( \sqrt{2} + \sqrt{3} + \sqrt{5} )}{2 \sqrt{3} \sqrt{3} } \\ = \frac{ \sqrt{6} + 3+ \sqrt{15} }{2 \times 3 } \\ = \frac{ \sqrt{6} + 3 + \sqrt{15} }{6} \\ hence \: rationalised$

8.

√2/√2+√3-√5 rationalize the denominator

Answer»

ANSWER:

$\frac{ \sqrt{2} }{ \sqrt{2} + \sqrt{3} - \sqrt{5} }$

RATIONALIZE the DENOMINATOR

$\frac{ \sqrt{2} }{ \sqrt{2} + \sqrt{3} - \sqrt{5} } \times \frac{ \sqrt{2} + \sqrt{3} + \sqrt{5} }{ \sqrt{2} + \sqrt{3} + \sqrt{5} } \\ = \frac{ \sqrt{2} ( \sqrt{2} + \sqrt{3} + \sqrt{5}) }{ {( \sqrt{2} + \sqrt{3} )}^{2} - 5} \\ = \frac{2 + \sqrt{6} + \sqrt{10} }{2 + 2 \sqrt{6} + 3 - 5} \\ = \frac{ \sqrt{2}( \sqrt{2} + \sqrt{3} + \sqrt{5} )}{2 \sqrt{6} } \\ = \frac{ \sqrt{2} + \sqrt{3} + \sqrt{5} }{2 \sqrt{3} } \\ = \frac{ \sqrt{2} + \sqrt{3} + \sqrt{5} }{2 \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ = \frac{ \sqrt{3}( \sqrt{2} + \sqrt{3} + \sqrt{5} )}{2 \times 3} \\ = \frac{ \sqrt{3} ( \sqrt{2} + \sqrt{3} + \sqrt{5} )}{2 \sqrt{3} \sqrt{3} } \\ = \frac{ \sqrt{6} + 3+ \sqrt{15} }{2 \times 3 } \\ = \frac{ \sqrt{6} + 3 + \sqrt{15} }{6} \\ hence \: rationalised$

Discussion

9.	If N is the cube of a certain positive integer, whichof the following is square of the next positive integer?(1) N+1(2) N+1(3) N2 +1(4) N8 +218 +1
Answer» Step-by-step EXPLANATION: the NEXT POSITIVE INTEGER is N+1

9.

If N is the cube of a certain positive integer, whichof the following is square of the next positive integer?(1) N+1(2) N+1(3) N2 +1(4) N8 +218 +1

Answer»

Step-by-step EXPLANATION:

the NEXT POSITIVE INTEGER is N+1

Discussion

10.	Round to 1 d.p 78.365
Answer» Answer: 78 Step-by-step explanation: WHEN WE ARE ROUNDING DECIMAL VALUES IF ITS VALUE IS GREATER THAN OR EQUAL TO 5 WE ADD 1 OTHERWISE 0 SO 78.365 LAST VALUE IS 5 SO WE ADD 1 TO ITS PREVIOUS VALUE IT WILL BE 6 + 1 =7 NO VALUE IS 78.37 LAST VALUE IS 7 SO WE ADD 1 TO ITS PREVIOUS VALUE IT WILL BE 3 + 1 =4 VALUE IS 78.4 LAST VALUE IS 4 SO WE ADD 0 TO ITS PREVIOUS VALUE IT WILL BE 8 + 0 =8 SO ANSWER IS 78

10.

Round to 1 d.p 78.365

Answer»

Answer:

78

Step-by-step explanation:

WHEN WE ARE ROUNDING DECIMAL VALUES

IF ITS VALUE IS GREATER THAN OR EQUAL TO 5 WE ADD 1 OTHERWISE 0

SO 78.365

LAST VALUE IS 5 SO WE ADD 1 TO ITS PREVIOUS VALUE IT WILL BE 6 + 1 =7

NO VALUE IS 78.37

LAST VALUE IS 7 SO WE ADD 1 TO ITS PREVIOUS VALUE IT WILL BE 3 + 1 =4

VALUE IS 78.4

LAST VALUE IS 4 SO WE ADD 0 TO ITS PREVIOUS VALUE IT WILL BE 8 + 0 =8

SO ANSWER IS 78

Discussion

11.	The length of the diagonal of a rectangle is 10 cm the area of its circumscribed circle is
Answer» Diameter of the CIRCLE will be the DIAGONAL of the rectangle....Which is 10 cm Radius -- 5 cm Then the area of circle -- πr^2 22/7×5×5 = 78.57 Area of the circumscribed circle will be 78.57 cm^2

11.

The length of the diagonal of a rectangle is 10 cm the area of its circumscribed circle is

Answer»

Diameter of the CIRCLE will be the DIAGONAL of the rectangle....Which is 10 cm

Radius -- 5 cm

Then the area of circle -- πr^2

22/7×5×5 = 78.57

Area of the circumscribed circle will be 78.57 cm^2

Discussion

12.	Please solve.........................
Answer» Step-by-step EXPLANATION: Our assuming depend upon the ORDER of matrix, and when TWO matrix are equal then each element of matrix are also equal and two matrix are in equal order.

12.

Please solve.........................

Answer»

Step-by-step EXPLANATION:

Our assuming depend upon the ORDER of matrix, and when TWO matrix are equal then each element of matrix are also equal and two matrix are in equal order.

Discussion

13.	If x/2y = 3/2 then find 2x+y/x-2y
Answer» HOPE it will HELP you....

Discussion

14.	Plz answer 36 problem
Answer» ANSWER: hey mate the picture is not PROPER... CLICK it again

14.

Plz answer 36 problem

Answer»

ANSWER:

hey mate

the picture is not PROPER...

CLICK it again

Discussion

15.	3(x+6)=64-2(x+3) please solve this
Answer» Answer: 8 Step-by-step EXPLANATION: =================================================================== 3(X+6) = 64-2(x+3) 3x+18 = 64-2x-6 3x+18 = 58-2x 3x+2x = 58-18 5X = 40 x = 8 ===================================================================

15.

3(x+6)=64-2(x+3) please solve this

Answer»

Answer:

8

Step-by-step EXPLANATION:

===================================================================

3(X+6) = 64-2(x+3)

3x+18 = 64-2x-6

3x+18 = 58-2x

3x+2x = 58-18

5X = 40

x = 8

===================================================================

Discussion

16.	Bxbxbxbxbx ------ y times =
Answer» What do you MEAN by this QUESTION BUDDY?

Discussion

17.	Please solve this question.Please
Answer» OK LETS SEE WHAT WE HAVE HERE (your funny1!!!!!!1) ok lets GET sirious hi i am la lith of . . .. . . . . . .. . . . . . . ..wait . . . . . . .. ..wait. . .YEAH i know .. .. . . . .IDK sry bye!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

17.

Please solve this question.Please

Answer»

OK LETS SEE WHAT WE HAVE HERE

(your funny1!!!!!!1)

ok lets GET sirious

hi

i

am

la

lith

of

.

..

.

..

.

..wait

.

..

..wait.

.

.YEAH

i

know

..

.

.IDK

sry bye!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Discussion

18.	construct a parallelogram ABCD whose diagonals are 7.6 and 6.4 cm and the angle between them is 85 degree
Answer» ANSWER: OMKAR BRO no why you here

18.

construct a parallelogram ABCD whose diagonals are 7.6 and 6.4 cm and the angle between them is 85 degree

Answer»

ANSWER:

OMKAR BRO no why you here

Discussion

19.	(c) Write all the positive integers that are less than +5.
Answer» Answer: 4,3,2,1,0,1/2,1/4 please PLZZZZZZZZZZ MARK me BRAINLIESTTT

19.

(c) Write all the positive integers that are less than +5.

Answer»

Answer:

4,3,2,1,0,1/2,1/4

please PLZZZZZZZZZZ MARK me BRAINLIESTTT

Discussion

20.	*one of a parallel sides of trapezium is 10cm, and Corresponding height is 12cm. lf the area of trapezium is 336cm^2. find the other side
Answer» Answer: 46cm is the LENGTH of ANOTHER SIDE

20.

*one of a parallel sides of trapezium is 10cm, and Corresponding height is 12cm. lf the area of trapezium is 336cm^2. find the other side

Answer»

Answer:

46cm is the LENGTH of ANOTHER SIDE

Discussion

21.	there is a large square Portrait of a leader that covers an area of 4489 CM square if each side has two liner what could be its area
Answer» ANSWER: here is your answer ➡️ ➡️➡️. 552 cm² Step-by-step EXPLANATION: MARK it as a BRAINLIEST answer

21.

there is a large square Portrait of a leader that covers an area of 4489 CM square if each side has two liner what could be its area

Answer»

ANSWER:

here is your answer ➡️ ➡️➡️. 552 cm²

Step-by-step EXPLANATION:

MARK it as a BRAINLIEST answer

Discussion

22.	35. The result of pass percentage of class X and XII in CBSE examination for 5 years are given in thefollowing table :Year: 2005-06 2006 - 07 / 2007 - 08 2008-09 2009 - 1075959085968085909598Draw the double bar graph to represent the data.
Answer» Given: Year : 2005-06 2006-07 2007-08 2008-09 2009-10 X : 75 95 90 85 96 XII : 80 85 90 95 98 To find: Draw the double BAR graph to REPRESENT the data. Solution: The double bar graph is attached In the graph blue color is for X result and red color is for XII result. On x-axis : Year On y-axis : Percentage

22.

35. The result of pass percentage of class X and XII in CBSE examination for 5 years are given in thefollowing table :Year: 2005-06 2006 - 07 / 2007 - 08 2008-09 2009 - 1075959085968085909598Draw the double bar graph to represent the data.

Answer»

Given:

Year : 2005-06 2006-07 2007-08 2008-09 2009-10

X : 75 95 90 85 96

XII : 80 85 90 95 98

To find:

Draw the double BAR graph to REPRESENT the data.

Solution:

The double bar graph is attached

In the graph blue color is for X result and red color is for XII result.

On x-axis : Year

On y-axis : Percentage

Discussion

23.	measure of the angle of a quadrilateral are in the ratio 1:2:3:4find the measure of each angle.what type of quadrilateral is it?
Answer» ANSWER: $let \: the \: angle \: of \: quadrilateral \: be = x \\ = x + 2x + 3x + 4x = 360 \\ = 10x = 360 \\ = x = \frac{360}{10} \\ = x = 36 \\ = 36 \\ 36 \times 2 = 72 \\ 36 \times 3 = 108 \\ = 36 \times 4 = 144$

23.

measure of the angle of a quadrilateral are in the ratio 1:2:3:4find the measure of each angle.what type of quadrilateral is it?

Answer»

ANSWER:

$let \: the \: angle \: of \: quadrilateral \: be = x \\ = x + 2x + 3x + 4x = 360 \\ = 10x = 360 \\ = x = \frac{360}{10} \\ = x = 36 \\ = 36 \\ 36 \times 2 = 72 \\ 36 \times 3 = 108 \\ = 36 \times 4 = 144$

Discussion

24.	Simplify the product and verify the result for x = 2, y = -1 and z = 1 . (x^2)(-3xy^3)(1/6y*z^2)
Answer» (x^2)(-3x.y^3)(1/6y.z^2) (x^2)(-3xy^3)(1/6yz^2) (-3x^3y^3)(1/6yz^2) (-x^3.y^4.z^2)/2 -(2)^3(-1)^4(1)^2/2 -(222)/2 -(2*2) -(4) -4

24.

Simplify the product and verify the result for x = 2, y = -1 and z = 1 . (x^2)(-3xy^3)(1/6y*z^2)

Answer»

(x^2)(-3x.y^3)(1/6y.z^2)

(x^2)(-3xy^3)(1/6yz^2)

(-3x^3y^3)(1/6yz^2)

(-x^3.y^4.z^2)/2

-(2)^3(-1)^4(1)^2/2

-(2*2*2)/2

-(2*2)

-(4)

-4

Discussion

25.	I want 20 th question pls I need answer quickly to finish up my h.w pls do help me
Answer» a) 1008 .................

25.

I want 20 th question pls I need answer quickly to finish up my h.w pls do help me

Answer»

a) 1008

.................

Discussion

26.	1. Seema asked a riddle to Shaina. She asked, "The sum of my digits is 23. Whenoff to the nearest 100, 1 am 75600. Round off to the nearest 10 makes me 75620am I?". Can you help Shaina to solve this?& When Tour
Answer» ANSWER: SEEMS will DIE bbvvvgjjn

26.

1. Seema asked a riddle to Shaina. She asked, "The sum of my digits is 23. Whenoff to the nearest 100, 1 am 75600. Round off to the nearest 10 makes me 75620am I?". Can you help Shaina to solve this?& When Tour

Answer»

ANSWER:

SEEMS will DIE bbvvvgjjn

Discussion

27.	cost of 1 dozen banana is rs 250 and cost of 10 ball pens is rs 75 find the ratio rate of cost of a banana to that of a ball pen
Answer» Answer: 2.777 Step-by-step explanation: ☆Cost of 12 bananas = 250 Cost of ONE banana = 250/12 = 20.833... ☆Cost of 10 ball PENS = 75 Cost of 1 ball PEN = 75/10 = 7.5 Ratio = 20.833.... ÷ 7.5 = 2.777 *HOPE* *THIS* *HELPS* *YOU*......

27.

cost of 1 dozen banana is rs 250 and cost of 10 ball pens is rs 75 find the ratio rate of cost of a banana to that of a ball pen

Answer»

Answer:

2.777

Step-by-step explanation:

☆Cost of 12 bananas = 250

Cost of ONE banana = 250/12 = 20.833...

☆Cost of 10 ball PENS = 75

Cost of 1 ball PEN = 75/10 = 7.5

Ratio = 20.833.... ÷ 7.5

= 2.777

HOPE THIS HELPS YOU......

Discussion

28.	we can get equivalent ratio by multiplying or dividing the numerator and denominator by different number say weather the statement is true OR false
Answer» The STATEMENT is TRUE . B

28.

we can get equivalent ratio by multiplying or dividing the numerator and denominator by different number say weather the statement is true OR false

Answer»

The STATEMENT is TRUE . B

Discussion

29.	In the adjoining figure, ABCD is a quadrilateral with diagonal AC and DB. IfAB = DC and angleBCD= angle CBA, show thata) ∆BCD = ∆ABCb) angleBCD = angle BADc) angleBCA = angleCBD
Answer» QUADRILATERAL ABCD we have AC = AD and AB being the bisector of ∠A. Now, in ΔABC and ΔABD, AC = AD [Given] AB = AB [Common] ∠CAB = ∠DAB [∴ AB bisects ∠CAD] ∴ Using SAS criteria, we have ΔABC ≌ ΔABD. ∴ Corresponding parts of CONGRUENT triangles (c.p.c.t) are equal. ∴ BC = BD. Hope it’s HELP You

29.

In the adjoining figure, ABCD is a quadrilateral with diagonal AC and DB. IfAB = DC and angleBCD= angle CBA, show thata) ∆BCD = ∆ABCb) angleBCD = angle BADc) angleBCA = angleCBD

Answer»

QUADRILATERAL ABCD we have

AC = AD

and AB being the bisector of ∠A.

Now, in ΔABC and ΔABD,

AC = AD

[Given]

AB = AB

[Common]

∠CAB = ∠DAB [∴ AB bisects ∠CAD]

∴ Using SAS criteria, we have

ΔABC ≌ ΔABD.

∴ Corresponding parts of CONGRUENT triangles (c.p.c.t) are equal.

∴ BC = BD.

Hope it’s HELP You

Discussion

30.	The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the fourwalls at the rate of 10 per m^2is *15000, find the height of the hall,[Hint: Area of the four walls =Lateral surface area.]
Answer» $\huge\underline\mathrm{SOLUTION:-}$ Let length, breadth, and height of the rectangular hall be L, b, and H respectively. AREA of four walls = 2lh + 2 bh = 2 (l + b) h Perimeter of the floor of hall = 2(l + b) = 250 m Area of four walls = 2(l + b) h = 250h m2 Cost of painting per square meter area = Rs.10 Cost of painting 250h square meter area = Rs (250 h X 10) = Rs.2500h However, it is given that the cost of paining the walls is Rs. 15000. 15000 = 2500h Or h = 6 Therefore: The height of the hall is 6 m. $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

30.

The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the fourwalls at the rate of 10 per m^2is *15000, find the height of the hall,[Hint: Area of the four walls =Lateral surface area.]

Answer»

$\huge\underline\mathrm{SOLUTION:-}$

Let length, breadth, and height of the rectangular hall be L, b, and H respectively.

AREA of four walls = 2lh + 2 bh

= 2 (l + b) h

Perimeter of the floor of hall = 2(l + b)

= 250 m

Area of four walls = 2(l + b) h = 250h m2

Cost of painting per square meter area = Rs.10

Cost of painting 250h square meter area = Rs (250 h X 10) = Rs.2500h

However, it is given that the cost of paining the walls is Rs. 15000.

15000 = 2500h

Or h = 6

Therefore:

The height of the hall is 6 m.

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Discussion

31.	Show 1 /√2 on number line
Answer» Step-by-step EXPLANATION: √2/2 this is your ANSWER

31.

Show 1 /√2 on number line

Answer»

Step-by-step EXPLANATION:

√2/2

this is your ANSWER

Discussion

32.	when an object is placed at 5 metres in front of a convex mirror of radius of curvature 6 metres then calculate the image distance and also write the properties of image ?
Answer» Answer: hope you like this ONE Step-by-step explanation: Given; u =-5 r=6 therefore f =3 1/v= 1/f -1/u v= uf/u-f = -15/-8 =1.875 therefore the images VIRTUAL end erect please mark it as brainliest one

32.

when an object is placed at 5 metres in front of a convex mirror of radius of curvature 6 metres then calculate the image distance and also write the properties of image ?

Answer»

Answer:

hope you like this ONE

Step-by-step explanation:

Given;

u =-5

r=6

therefore f =3

1/v= 1/f -1/u

v= uf/u-f

= -15/-8

=1.875

therefore the images VIRTUAL end erect

please mark it as brainliest one

Discussion

33.	The diameter of a shot-put made of brass is 14 cm. If 1 cm of brass weighs 8 gram, find theweight of the shot-put.
Answer» brass=14cm 1cm=8g therefore cross multiyply 14×1/8 1.75cm/g weight of the shot-put is 1.75cm/g

33.

The diameter of a shot-put made of brass is 14 cm. If 1 cm of brass weighs 8 gram, find theweight of the shot-put.

Answer»

brass=14cm

1cm=8g

therefore

cross multiyply

14×1/8

1.75cm/g

weight of the shot-put is 1.75cm/g

Discussion

34.	The squares of which of the following would be odd numbers (i) 431
Answer» I THINK your QUESTION is incomplete But SQUARE of 431 is good no. as 1*1 is 1 which is an ODD no. Regards

34.

The squares of which of the following would be odd numbers (i) 431

Answer»

I THINK your QUESTION is incomplete

But SQUARE of 431 is good no. as 1*1 is 1 which is an ODD no.

Regards

Discussion

35.	A=3]Viwmathematical methods for economics
Answer»

Discussion

36.	Find area of the shaded region
Answer» Answer: 114 Is the AREA

36.

Find area of the shaded region

Answer»

Answer:

114

Is the AREA

Discussion

37.	Distance between earth and moon is 38,40,00,000 km. Then Express in standard form
Answer» Answer: 3.84* $10^{8}$ Step-by-step EXPLANATION:

37.

Distance between earth and moon is 38,40,00,000 km. Then Express in standard form

Answer»

Answer:

3.84* $10^{8}$

Step-by-step EXPLANATION:

Discussion

38.	Heya!!!!!no spam ⚒⚒.correctly answer it.
Answer» Answer: $\red {Number \: T-shirts \: left} \green {= x+y}$ Step-by-step explanation: $Number \: of \:<klux>PLAYERS</klux> \: in \:a \:team = 11$ $Number \: T- shirts \: purchased \: first \:time \\= 10x + y$ $Number \: T- shirts \: purchased \: second \:time \\= 10y + x$ $Total \: T-shirts = 10x + y + 10y + x \\= 11x + 11y \\= 11(x+y)$ /* If Total T-shirts DISTRIBUTED to players EQUALLY then $Number \: T-shirts \: left \\= \frac{Total\: T-shirts}{Number \: players }\\= \frac{11(x+y)}{11} \\= x+y$ Therefore., $\red {Number \: T-shirts \: left} \green {= x+y}$ •••♪

38.

Heya!!!!!no spam ⚒⚒.correctly answer it.

Answer»

Answer:

$\red {Number \: T-shirts \: left} \green {= x+y}$

Step-by-step explanation:

$Number \: of \:<klux>PLAYERS</klux> \: in \:a \:team = 11$

$Number \: T- shirts \: purchased \: first \:time \\= 10x + y$

$Number \: T- shirts \: purchased \: second \:time \\= 10y + x$

$Total \: T-shirts = 10x + y + 10y + x \\= 11x + 11y \\= 11(x+y)$

/* If Total T-shirts DISTRIBUTED to players EQUALLY then

$Number \: T-shirts \: left \\= \frac{Total\: T-shirts}{Number \: players }\\= \frac{11(x+y)}{11} \\= x+y$

Therefore.,

$\red {Number \: T-shirts \: left} \green {= x+y}$

•••♪

Discussion

39.	Find value of log 89÷48.5 using log table
Answer» ANSWER: answer is LOG(√2/1+√2) Step-by-step EXPLANATION:

39.

Find value of log 89÷48.5 using log table

Answer»

ANSWER:

answer is LOG(√2/1+√2)

Step-by-step EXPLANATION:

Discussion

40.	Formula of sector of circle
Answer» ANSWER: theta / 360 X πr² Step-by-step explanation: it is theta by 360 DEGREE multiplied by pie and radius ²

40.

Formula of sector of circle

Answer»

ANSWER:

theta / 360 X πr²

Step-by-step explanation:

it is theta by 360 DEGREE multiplied by pie and radius ²

Discussion

41.	I have one question12+87= please
Answer» ANSWER: Step-by-step explanat: 99

41.

I have one question12+87= please

Answer»

ANSWER:

Step-by-step explanat:

99

Discussion

42.	In an examination, 60 student appeared of them 24 passed and rest failed what percentage of student passed and what percent of student failed
Answer» Answer: 60 % Step-by-step explanation: No. of STUDENTS FAILED = 60 - 24 = 36 Percentage ( %) of students failed = 36/60% = 36/60 × 100 = 60 % *Hope* *you* *understand* ! MARK me the BRAINLIEST !!!

42.

In an examination, 60 student appeared of them 24 passed and rest failed what percentage of student passed and what percent of student failed

Answer»

Answer:

60 %

Step-by-step explanation:

No. of STUDENTS FAILED = 60 - 24 = 36

Percentage ( %) of students failed = 36/60%

= 36/60 × 100

= 60 %

Hope you understand !

MARK me the BRAINLIEST !!!

Discussion

43.	Peggy appears to be rich in resources and appearances whereas wanda proves has to be richest through the values she possesses
Answer» ANSWER: HYY MATE Step-by-step EXPLANATION: i dont KNOW......................

43.

Peggy appears to be rich in resources and appearances whereas wanda proves has to be richest through the values she possesses

Answer»

ANSWER:

HYY MATE

Step-by-step EXPLANATION:

i dont KNOW......................

Discussion

44.	100 mts is equal to
Answer» ANSWER: 100 m =0.1 km 100 m=10000 cm please MARK as BRAINLIEST answer.

44.

100 mts is equal to

Answer»

ANSWER:

100 m =0.1 km

100 m=10000 cm

please MARK as BRAINLIEST answer.

Discussion

45.	Convert into paise.8.56
Answer» ANSWER: 0.0856 paiseis the RIGHT answer

45.

Convert into paise.8.56

Answer»

ANSWER:

0.0856 paiseis the RIGHT answer

Discussion

46.	If the value of median is 13.6and mean is 13, then the value of true mode is
Answer» Step-by-step explanation: GIVEN, median =13.6 mean =13 we need to find mode. by emperical formula, mode = 3median - 2mean mode= 3(13.6) - 2(13) mode = 40.8 - 26 mode = 14.8 the value of mode is 14.8 hope u like this solution

46.

If the value of median is 13.6and mean is 13, then the value of true mode is

Answer»

Step-by-step explanation:

GIVEN,

median =13.6

mean =13

we need to find mode.

by emperical formula,

mode = 3median - 2mean

mode= 3(13.6) - 2(13)

mode = 40.8 - 26

mode = 14.8

the value of mode is 14.8

hope u like this solution

Discussion

47.	(Simplify):(p-q)- r , (9-r)'- p. (r-p) - 97.ĺp-q+r)' q'-(r + p)' r - (p+q)'
Answer» Answer:5fffff Ew Step-by-step explanation:5 Ew

47.

(Simplify):(p-q)- r , (9-r)'- p. (r-p) - 97.ĺp-q+r)' q'-(r + p)' r - (p+q)'

Answer»

Answer:5fffff

Ew

Step-by-step explanation:5

Ew

Discussion

48.	What do we call चूहा in hindi
Answer» CHUHA is ALSO CALLED ghoss

Discussion

49.	cost of 1 dozen banana is rs 250 and cost of 10 ball pens is rs 75 find the rate of cost of a banana to that of a ball pen
Answer» ANSWER: COST of 1 BANANA = 20.8rs cost of 1 PEN = 7.5rs

49.

cost of 1 dozen banana is rs 250 and cost of 10 ball pens is rs 75 find the rate of cost of a banana to that of a ball pen

Answer»

ANSWER:

COST of 1 BANANA = 20.8rs

cost of 1 PEN = 7.5rs

Discussion

50.	In figure the side of rectangale are given the length are in cm find the length and breath of rectangale
Answer» ANSWER: very simple Step-by-step EXPLANATION: AREA FOMULA

50.

In figure the side of rectangale are given the length are in cm find the length and breath of rectangale

Answer»

ANSWER:

very simple

Step-by-step EXPLANATION:

AREA FOMULA

Discussion

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The roots of a quadratic equation are 3/2 and -1/5. find thequadratic equation.

Prove Intercept theorem

Explain how to take lcm

√2/√2+√3-√5 rationalize the denominator

If N is the cube of a certain positive integer, whichof the following is square of the next positive integer?(1) N+1(2) N+1(3) N2 +1(4) N8 +218 +1

Round to 1 d.p 78.365

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Please solve.........................

If x/2y = 3/2 then find 2x+y/x-2y

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Please solve this question.Please

construct a parallelogram ABCD whose diagonals are 7.6 and 6.4 cm and the angle between them is 85 degree

(c) Write all the positive integers that are less than +5.

*one of a parallel sides of trapezium is 10cm, and Corresponding height is 12cm. lf the area of trapezium is 336cm^2. find the other side

there is a large square Portrait of a leader that covers an area of 4489 CM square if each side has two liner what could be its area

35. The result of pass percentage of class X and XII in CBSE examination for 5 years are given in thefollowing table :Year: 2005-06 2006 - 07 / 2007 - 08 2008-09 2009 - 1075959085968085909598Draw the double bar graph to represent the data.

measure of the angle of a quadrilateral are in the ratio 1:2:3:4find the measure of each angle.what type of quadrilateral is it?

Simplify the product and verify the result for x = 2, y = -1 and z = 1 . (x^2)(-3xy^3)(1/6y*z^2)

I want 20 th question pls I need answer quickly to finish up my h.w pls do help me

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we can get equivalent ratio by multiplying or dividing the numerator and denominator by different number say weather the statement is true OR false

In the adjoining figure, ABCD is a quadrilateral with diagonal AC and DB. IfAB = DC and angleBCD= angle CBA, show thata) ∆BCD = ∆ABCb) angleBCD = angle BADc) angleBCA = angleCBD

The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the fourwalls at the rate of 10 per m^2is *15000, find the height of the hall,[Hint: Area of the four walls =Lateral surface area.]

Show 1 /√2 on number line

when an object is placed at 5 metres in front of a convex mirror of radius of curvature 6 metres then calculate the image distance and also write the properties of image ?

The diameter of a shot-put made of brass is 14 cm. If 1 cm of brass weighs 8 gram, find theweight of the shot-put.

The squares of which of the following would be odd numbers (i) 431

A=3]Viwmathematical methods for economics

Find area of the shaded region

Distance between earth and moon is 38,40,00,000 km. Then Express in standard form

Heya!!!!!no spam ⚒⚒.correctly answer it.

Find value of log 89÷48.5 using log table

Formula of sector of circle

I have one question12+87= please

In an examination, 60 student appeared of them 24 passed and rest failed what percentage of student passed and what percent of student failed

Peggy appears to be rich in resources and appearances whereas wanda proves has to be richest through the values she possesses

100 mts is equal to

Convert into paise.8.56

(Simplify):(p-q)- r , (9-r)'- p. (r-p) - 97.ĺp-q+r)' q'-(r + p)' r - (p+q)'

What do we call चूहा in hindi

cost of 1 dozen banana is rs 250 and cost of 10 ball pens is rs 75 find the rate of cost of a banana to that of a ball pen