332354 + Interview Questions in Secondary School in Math

1.	178+(225+______)=(________+________)+195
Answer» Answer: BLANK a = 195 b = 178 C = 225

1.

178+(225+)=(+__)+195

Answer»

Answer:

BLANK a = 195

b = 178

C = 225

Discussion

2.	If 1 /√−√ = 1/3 and 1/√+√ = 1/2 ,then find the difference of a and b
Answer» √a - √B = 3 √a + √b = 2 Multiply these both (√a - √b)(√a + √b) = 3(2) (√a)² - (√b)² = 6 {(a+b)(a-b)=a²-b²} a - b = 6 Hence the difference between a and b is 6. Hope it HELPS!!! :)

2.

If 1 /√−√ = 1/3 and 1/√+√ = 1/2 ,then find the difference of a and b

Answer»

√a - √B = 3

√a + √b = 2

Multiply these both

(√a - √b)(√a + √b) = 3(2)

(√a)² - (√b)² = 6 {(a+b)(a-b)=a²-b²}

a - b = 6

Hence the difference between a and b is 6.

Hope it HELPS!!! :)

Discussion

3.	Write the degree of polynomial in 5x -√2
Answer» ANSWER: The DEGREE of this POLYNOMIAL is 1 HOPE IT HELPS YOU❣❣✨✨✌✌

3.

Write the degree of polynomial in 5x -√2

Answer»

ANSWER:

The DEGREE of this POLYNOMIAL is 1

HOPE IT HELPS YOU❣❣✨✨✌✌

Discussion

4.	Select the number which can be placed in place of the question mark
Answer» ANSWER: $\huge{\bold{\boxed{\boxed{\mathfrak{\red{ANSWER}}}}}}$ Step-by-step EXPLANATION: $Follow\:opposite\:pairs\:of\:numbers\:like;$ $65=>(4+3)^2+4^2=49+16=65,$ $130=>(2+7)^2+7^2=81+49=65,$ $233=>(5+8)^2+8^2=169+64=233,$ $Similarly\:we\:can\:solve;$ $(6+9)^2+9^2=225+81=306.$

4.

Select the number which can be placed in place of the question mark

Answer»

ANSWER:

$\huge{\bold{\boxed{\boxed{\mathfrak{\red{ANSWER}}}}}}$

Step-by-step EXPLANATION:

$Follow\:opposite\:pairs\:of\:numbers\:like;$

$65=>(4+3)^2+4^2=49+16=65,$

$130=>(2+7)^2+7^2=81+49=65,$

$233=>(5+8)^2+8^2=169+64=233,$

$Similarly\:we\:can\:solve;$

$(6+9)^2+9^2=225+81=306.$

Discussion

5.	Plz, can anyone give the solution of number 26 with proper steps? I need it fast
Answer» ANSWER: SORRY main nhi janta Step-by-step EXPLANATION: sorry

5.

Plz, can anyone give the solution of number 26 with proper steps? I need it fast

Answer»

ANSWER:

SORRY main nhi janta

Step-by-step EXPLANATION:

sorry

Discussion

6.	-8. Each of the two equal angangles of thetriangleThe two equal angles of a triangle is twice the third angle. Find
Answer» Question: Each of the two equal angles of a triangle is TWICE the third ANGLE. Find the angles of the triangle. Solution: Let each equal angle (in DEGREES) = x Let the third angle (in degrees) = y According to question x = 2y We know, x + x + y = 180° (Angle Sum Property) Putting value of x 2y + 2y + y = 180° 5y = 180° y = $\dfrac{180^{\circ}}{5}$ y = 36° Value of x x = 2y x = 2(36°) x = 72° Therefore, the angles are 72°, 72° and 36°.

6.

-8. Each of the two equal angangles of thetriangleThe two equal angles of a triangle is twice the third angle. Find

Answer»

Question:

Each of the two equal angles of a triangle is TWICE the third ANGLE. Find the angles of the triangle.

Solution:

Let each equal angle (in DEGREES) = x

Let the third angle (in degrees) = y

According to question

x = 2y

We know,

x + x + y = 180° (Angle Sum Property)

Putting value of x

2y + 2y + y = 180°

5y = 180°

y = $\dfrac{180^{\circ}}{5}$

y = 36°

Value of x

x = 2y

x = 2(36°)

x = 72°

Therefore, the angles are 72°, 72° and 36°.

Discussion

7.	Find the sum of first 80 natural number
Answer» A.P: 1,2,3,4.....80 a=1, d=1, n=80 a^n = a + (n-1)d = 1 + (80-1)1 = 1 + 79 = 80 S^n = n/2 (a + a^n) = 80/2 (1 + 80) = 40(81) = 3204 Hope it helps!!! :)

7.

Find the sum of first 80 natural number

Answer»

A.P: 1,2,3,4.....80

a=1, d=1, n=80

a^n = a + (n-1)d

= 1 + (80-1)1

= 1 + 79

= 80

S^n = n/2 (a + a^n)

= 80/2 (1 + 80)

= 40(81)

= 3204

Hope it helps!!! :)

Discussion

8.	Arrange the following data in the form of an inclusive frequency distribution, using 5-10 as the initial class interval.12, 36, 40, 30, 28, 20, 19, 10, 10, 19, 27, 15, 26, 10, 19, 7, 45, 33, 26, 37, 5, 20, 11, 17, 37, 30, 20
Answer» Answer: 40 Step-by-step EXPLANATION: CLASS interval=H-L =45-5 =40

8.

Arrange the following data in the form of an inclusive frequency distribution, using 5-10 as the initial class interval.12, 36, 40, 30, 28, 20, 19, 10, 10, 19, 27, 15, 26, 10, 19, 7, 45, 33, 26, 37, 5, 20, 11, 17, 37, 30, 20

Answer»

Answer:

40

Step-by-step EXPLANATION:

CLASS interval=H-L

=45-5

=40

Discussion

9.	Find missing frequency of givin data if mean is 26Marks frequency fx20 4 8021 5 10528 f 28f30 3 9032 f2 32f225 1 2524 3 72
Answer» ANSWER: you can SOLVE this by FOLLOWING FORMULA

9.

Find missing frequency of givin data if mean is 26Marks frequency fx20 4 8021 5 10528 f 28f30 3 9032 f2 32f225 1 2524 3 72

Answer»

ANSWER:

you can SOLVE this by FOLLOWING FORMULA

Discussion

10.	The distance between two stations, Delhi and Amritsar, is 450 km. A train starts at 4 p.m. from Delhi and moves towards Amritsar at an average speed of 60 km/hr. Another train starts from Amritsar at 3.20 p.m. and moves towards Delhi at an average speed of 80 km/hr. How far from Delhi will the two trains meet and at what time?with steps and explanation.
Answer» Answer: 170 KM from Delhi the two TRAINS meet and at 6 : 48 PM. Step-by-step explanation: Let x represent How far from Delhi the two trains will meet. TRAIN from Amritsar starts 40 MINUTES early = 40/60 hour. So, Distance covered in 40/60 hour = 80 × 40/60 = 160/3 km Distance left to cover = 450 - 160/3 = 1190/3 km Now, To reach at meeting point both trains take equal time. Thus using Speed Distance time FORMULA, we have. $\frac{x}{60}=\frac{\frac{1190}{3}-x}{80}$ $\frac{x}{60}=\frac{1190-3x}{240}$ $4x=1190-3x$ $4x+3x=1190-3x$ 7x = 1190 x = 170 Time taken by train from Delhi to cover 170 km = 170/60 = 2.8 hour = 2 hour 48 minutes. Time when both train meet = 4 : 00 + 2 : 48 = 6 : 48 PM Therefore, 170 km from Delhi the two trains meet and at 6 : 48 PM.

10.

The distance between two stations, Delhi and Amritsar, is 450 km. A train starts at 4 p.m. from Delhi and moves towards Amritsar at an average speed of 60 km/hr. Another train starts from Amritsar at 3.20 p.m. and moves towards Delhi at an average speed of 80 km/hr. How far from Delhi will the two trains meet and at what time?with steps and explanation.

Answer»

Answer:

170 KM from Delhi the two TRAINS meet and at 6 : 48 PM.

Step-by-step explanation:

Let x represent How far from Delhi the two trains will meet.

TRAIN from Amritsar starts 40 MINUTES early = 40/60 hour.

So,

Distance covered in 40/60 hour = 80 × 40/60 = 160/3 km

Distance left to cover = 450 - 160/3 = 1190/3 km

Now, To reach at meeting point both trains take equal time.

Thus using Speed Distance time FORMULA, we have.

$\frac{x}{60}=\frac{\frac{1190}{3}-x}{80}$

$\frac{x}{60}=\frac{1190-3x}{240}$

$4x=1190-3x$

$4x+3x=1190-3x$

7x = 1190

x = 170

Time taken by train from Delhi to cover 170 km = 170/60 = 2.8 hour = 2 hour 48 minutes.

Time when both train meet = 4 : 00 + 2 : 48 = 6 : 48 PM

Therefore, 170 km from Delhi the two trains meet and at 6 : 48 PM.

Discussion

11.	Each of two evil of a triangle is twice the third angle .find the angles of the triangle
Answer» Step-by-step explanation: Let the third ANGLE be X then the FIRST and second angle will be 2x each total angle of a TRIANGLE is 180 degree a + b + c = 180 x + 2x + 2x = 180 5x = 180 x = 180/5 x = 36 angle a and b both = 2x = 2 x 36 = 72 degrees angle c = x = 36 degrees

11.

Each of two evil of a triangle is twice the third angle .find the angles of the triangle

Answer»

Step-by-step explanation:

Let the third ANGLE be X

then the FIRST and second angle will be 2x each

total angle of a TRIANGLE is 180 degree

a + b + c = 180

x + 2x + 2x = 180

5x = 180

x = 180/5

x = 36

angle a and b both = 2x

= 2 x 36

= 72 degrees

angle c = x

= 36 degrees

Discussion

12.	X is an odd number. Take an alphabet away from x and it becomes even. Which is that numbe
Answer» X is Seven. Take AWAY 'S' and it BECOMES even. Hope it HELPS!!! :)

12.

X is an odd number. Take an alphabet away from x and it becomes even. Which is that numbe

Answer»

X is Seven.

Take AWAY 'S' and it BECOMES even.

Hope it HELPS!!! :)

Discussion

13.	Write number name any 20 in lakhs & croses
Answer» Answer: In lakhs one lakh one one lakh two one lakh three one lakh four one lakh five one lakh six one lakh seven one lakh eight one lakh nine one lakh ten one lakh eleven one lakh twelve one lakh thirteen one lakh fourteen one lakh fifteen one lakh sixteen one lakh seventeen one lakh eighteen one lakh nineteen one lakh TWENTY In crores one CRORE one one crore two one crore three one crore four one crore five one crore six one crore seven one crore eight one crore nine one crore ten one crore eleven one crore twelve one crore thirteen one crore fourteen one crore fifteen one crore sixteen one crore seventeen one crore eighteen one crore neteen one crore twenty

13.

Write number name any 20 in lakhs & croses

Answer»

Answer:

In lakhs

one lakh one

one lakh two

one lakh three

one lakh four

one lakh five

one lakh six

one lakh seven

one lakh eight

one lakh nine

one lakh ten

one lakh eleven

one lakh twelve

one lakh thirteen

one lakh fourteen

one lakh fifteen

one lakh sixteen

one lakh seventeen

one lakh eighteen

one lakh nineteen

one lakh TWENTY

In crores

one CRORE one

one crore two

one crore three

one crore four

one crore five

one crore six

one crore seven

one crore eight

one crore nine

one crore ten

one crore eleven

one crore twelve

one crore thirteen

one crore fourteen

one crore fifteen

one crore sixteen

one crore seventeen

one crore eighteen

one crore neteen

one crore twenty

Discussion

14.	Write decimal expansion of 27/1250 without actual division
Answer» Answer: 27/1250 is in fraction decimal EXPANSION WITHOUT ACTUAL DIVISION is 0.0216

14.

Write decimal expansion of 27/1250 without actual division

Answer»

Answer:

27/1250 is in fraction

decimal EXPANSION WITHOUT ACTUAL DIVISION is 0.0216

Discussion

15.	Four ration numbers between 1by5 and 1by6..
Answer» Answer: Step-by-step EXPLANATION: → 1/5 1/6 → 16/56 15/65 → 6/30 5/30 → 610/3010 510/3010 → 60/300 50/300 → 51/300 , 52/300 , 53/300 , 54/300 , 55/300

15.

Four ration numbers between 1by5 and 1by6..

Answer»

Answer:

Step-by-step EXPLANATION:

→ 1/5 1/6

→ 1*6/5*6 1*5/6*5

→ 6/30 5/30

→ 6*10/30*10 5*10/30*10

→ 60/300 50/300

→ 51/300 , 52/300 , 53/300 , 54/300 , 55/300

Discussion

16.	1+sinA/cosecA-cotA-1-sinA/cosecA+cotA=2(1+cosA)
Answer» ANSWER: Step-by-step EXPLANATION: Solving LHS, 1+sin A / COSEC A - cot A - 1- sin A/ cosec A+cot A (1+sin A)(cosec A+ cot A) - (1-sin A)(cosec A- cot A) / cosec 2 A - cot2 A ......[(a+b)(a-b) =a2- b2] cosec A + cot A + 1 + COS A - cosec A + cot A + 1 - cos A 2 + 2 cot A 2(1+ cot A) = RHS

16.

1+sinA/cosecA-cotA-1-sinA/cosecA+cotA=2(1+cosA)

Answer»

ANSWER:

Step-by-step EXPLANATION:

Solving LHS,

1+sin A / COSEC A - cot A - 1- sin A/ cosec A+cot A

(1+sin A)(cosec A+ cot A) - (1-sin A)(cosec A- cot A) / cosec 2 A - cot2 A ......[(a+b)(a-b) =a2- b2]

cosec A + cot A + 1 + COS A - cosec A + cot A + 1 - cos A

2 + 2 cot A

2(1+ cot A) = RHS

Discussion

17.	What is the common formula of combinations ?
Answer» Answer: COMBINATIONS are a way to calculate the total outcomes of an event where order of the outcomes does not matter. To calculate combinations, we will USE the formula nCr = n! / R! * (n - r)!, where n represents the total number of ITEMS, and r represents the number of items being chosen at a time. Step-by-step explanation: hope it will HELP you

17.

What is the common formula of combinations ?

Answer»

Answer:

COMBINATIONS are a way to calculate the total outcomes of an event where order of the outcomes does not matter. To calculate combinations, we will USE the formula nCr = n! / R! * (n - r)!, where n represents the total number of ITEMS, and r represents the number of items being chosen at a time.

Step-by-step explanation:

hope it will HELP you

Discussion

18.	Using suitable identity of polynomial , factieise x²=y2÷100
Answer» Step-by-step EXPLANATION: ${x}^{2} = {y}^{2} \div 100 \ \\ 100 {x}^{2} = {y}^{2} \\ \\ {(10x)}^{2} - {y}^{2} = 0$

18.

Using suitable identity of polynomial , factieise x²=y2÷100

Answer»

Step-by-step EXPLANATION:

${x}^{2} = {y}^{2} \div 100 \ \\ 100 {x}^{2} = {y}^{2} \\ \\ {(10x)}^{2} - {y}^{2} = 0$

Discussion

19.	Tell me aomething about Pascal's triangles
Answer» ANSWER: There are two MAJOR areas where Pascal's Triangle is USED, in Algebra and in Probability / COMBINATORICS. Let's say you have the polynomial x+1, and you want to raise it to some powers, LIKE 1,2,3,4,5,.... ... Because of this connection, the entries in Pascal's Triangle are called the binomial coefficients.

19.

Tell me aomething about Pascal's triangles

Answer»

ANSWER:

There are two MAJOR areas where Pascal's Triangle is USED, in Algebra and in Probability / COMBINATORICS. Let's say you have the polynomial x+1, and you want to raise it to some powers, LIKE 1,2,3,4,5,.... ... Because of this connection, the entries in Pascal's Triangle are called the binomial coefficients.

Discussion

20.	Oh no! Can you save Hangman? Some people claim to have none of this when it comes to dancing.EAIYAnswer
Answer» ANSWER: The answer is y ..... ....

20.

Oh no! Can you save Hangman? Some people claim to have none of this when it comes to dancing.EAIYAnswer

Answer»

ANSWER:

The answer is y

.....

....

Discussion

21.	(3x+y-5) (3x-y-5) , factorise using proper identity
Answer» Answer: {(3X)^[2]}-{(y+5)^[2]} Step-by-step EXPLANATION: βαβΔΔ∞∞∨ \ ∞∛βΔπ∑║±≠× Question asked is WRONG you wreck

21.

(3x+y-5) (3x-y-5) , factorise using proper identity

Answer»

Answer:

{(3X)^[2]}-{(y+5)^[2]}

Step-by-step EXPLANATION:

βαβΔΔ∞∞∨ \

∞∛βΔπ∑║±≠×

Question asked is WRONG you wreck

Discussion

22.	Write four equivalent rational number of
Answer» QUESTION INCOMPLETE dear. Hope it HELPS!!! :)

22.

Write four equivalent rational number of

Answer»

QUESTION INCOMPLETE dear.

Hope it HELPS!!! :)

Discussion

23.	Using a suitable identity of polynomials, factorise x²÷4-y²÷4
Answer» Answer: GIVE me brainliest ans and THANKS PLZZZZZZZ

23.

Using a suitable identity of polynomials, factorise x²÷4-y²÷4

Answer»

Answer:

GIVE me brainliest ans and THANKS PLZZZZZZZ

Discussion

24.	- Express sin 120 + sin 40 as the product of sines and cosines.
Answer» ANSWER: Sin120 +SIN48!. =SIN(120+40)=SIN60

24.

- Express sin 120 + sin 40 as the product of sines and cosines.

Answer»

ANSWER:

Sin120 +SIN48!. =SIN(120+40)=SIN60

Discussion

25.	A function is defined as f(x)=3x+4 write down the values of f(7)
Answer» F(X) = 3x + 4 f(7) = 3(7) + 4 = 21 + 4 = 25 Hope it helps!!! :)

25.

A function is defined as f(x)=3x+4 write down the values of f(7)

Answer»

F(X) = 3x + 4

f(7) = 3(7) + 4

= 21 + 4

= 25

Hope it helps!!! :)

Discussion

26.	If alpha and beta are the zeroes of the polynomial m x2-5x+k such that alpha-beta =1,find k.
Answer» ANSWER: GIVE me BRAINLIEST ans and thanks PLZZZZZZZ

26.

If alpha and beta are the zeroes of the polynomial m x2-5x+k such that alpha-beta =1,find k.

Answer»

ANSWER:

GIVE me BRAINLIEST ans and thanks PLZZZZZZZ

Discussion

27.	2. What is domain of seco ?
Answer» SECO range is a cluster-based METADATA STORE developed and maintained by Yahoo!

27.

2. What is domain of seco ?

Answer»

SECO range is a cluster-based METADATA STORE developed and maintained by Yahoo!

Discussion

28.	Tell me how to subtractPls upload image of my answer U will be marked as the BRAINLIEST
Answer» ANSWER: (3x10²³) -{3x10²²) (30x10²²]-(3x10²²) 10²²(30-3) 27x10²² hope it will HELP U

28.

Tell me how to subtractPls upload image of my answer U will be marked as the BRAINLIEST

Answer»

ANSWER:

(3x10²³) -{3x10²²)

(30x10²²]-(3x10²²)

10²²(30-3)

27x10²²

hope it will HELP U

Discussion

29.	i have difficulty in solving the word problem and forming equation in chapter linear equation in two variable.what should i do
Answer» Answer: So you can read your maths TEXT BOOK and PRACTICE the sums so you can improve. If you have any doubt you can search in Google or in this wonderful APP.

29.

i have difficulty in solving the word problem and forming equation in chapter linear equation in two variable.what should i do

Answer»

Answer:

So you can read your maths TEXT BOOK and PRACTICE the sums so you can improve. If you have any doubt you can search in Google or in this wonderful APP.

Discussion

30.	If loga. loga x = 2, then x is equal to :
Answer» ANSWER: LOG x=2= 10^2= x=100.......

30.

If loga. loga x = 2, then x is equal to :

Answer»

ANSWER:

LOG x=2= 10^2=

x=100.......

Discussion

31.	Which is that lesson which prove all the statements of maths ?
Answer» SORRY GUYS its PMI- PRINCIPLE of mathametical INDUCTION

Discussion

32.	Write all the rational number whose absolute value is 5/9
Answer» Multiply both numerator and denominator with all the INTEGERS starting from 2 and go up with 3,4,5 and so on... or START with -1 and go down with -2,-3,-4 and so on... For eg, • (5×2)/(9×2) = 10/18 • (5×3)/(9×3) = 15/27 , etc.. Hope it helps!!! :)

32.

Write all the rational number whose absolute value is 5/9

Answer»

Multiply both numerator and denominator with all the INTEGERS starting from 2 and go up with 3,4,5 and so on...

or START with -1 and go down with -2,-3,-4 and so on...

For eg,

• (5×2)/(9×2) = 10/18

• (5×3)/(9×3) = 15/27 , etc..

Hope it helps!!! :)

Discussion

33.	(x/2-y/5-1) (x/2+y/5+1)
Answer» $\textbf{\large{\red{\underline{\underline{Step by step Explanation:-}}}}}$ $\mathtt{(\frac{x}{2}-\frac{y}{5}-1)(\frac{x}{2}+\frac{y}{5}+1}$ $\mathit{\underline{by,,}}$ $\mathtt{\underline{[(a-b-c)(a+b+c)=a^{2}-b^{2}-c^{2}-2bc}]}$ $\mathtt{\implies{(\frac{x}{2})^{2}-\frac{y}{5})^{2}-1^{2}-2\times \frac{y}{5}\times{1}}}$ $\mathtt{\implies{\frac{x^{2}}{4}-\frac{y^{2}}{25}-1-\frac{2y}{5}}}$ $\mathtt{\implies{\frac{25x^{2}-y^{2}-100-40y}{100}}}$ $\textbf{\small{\blue{\underline{Hope it helps you}}}}$ $\textit{\small{\green{\underline{please mark it as Brainliest answer.. thanks}}}}$

33.

(x/2-y/5-1) (x/2+y/5+1)

Answer»

$\textbf{\large{\red{\underline{\underline{Step by step Explanation:-}}}}}$

$\mathtt{(\frac{x}{2}-\frac{y}{5}-1)(\frac{x}{2}+\frac{y}{5}+1}$

$\mathit{\underline{by,,}}$

$\mathtt{\underline{[(a-b-c)(a+b+c)=a^{2}-b^{2}-c^{2}-2bc}]}$

$\mathtt{\implies{(\frac{x}{2})^{2}-\frac{y}{5})^{2}-1^{2}-2\times \frac{y}{5}\times{1}}}$

$\mathtt{\implies{\frac{x^{2}}{4}-\frac{y^{2}}{25}-1-\frac{2y}{5}}}$

$\mathtt{\implies{\frac{25x^{2}-y^{2}-100-40y}{100}}}$

$\textbf{\small{\blue{\underline{Hope it helps you}}}}$

$\textit{\small{\green{\underline{please mark it as Brainliest answer.. thanks}}}}$

Discussion

34.	In a group of 50 students 30 students like oranges and 25 students like apples how many students like both oranges and Apple?
Answer» A = 30 B = 25 A∪B = 50 A∩B = ? A∩B = A + B - A∪B = 30 + 25 - 50 = 55 - 50 = 5 Hence 5 peopls like both oranges and apple. Hope it helps!!! :)

34.

In a group of 50 students 30 students like oranges and 25 students like apples how many students like both oranges and Apple?

Answer»

A = 30

B = 25

A∪B = 50

A∩B = ?

A∩B = A + B - A∪B

= 30 + 25 - 50

= 55 - 50

= 5

Hence 5 peopls like both oranges and apple.

Hope it helps!!! :)

Discussion

35.	(3x+y-5)(3x-y-5) , find product using proper identity
Answer» Step-by-step EXPLANATION: your ANSWER>9x^2+25-30x-y^2

35.

(3x+y-5)(3x-y-5) , find product using proper identity

Answer»

Step-by-step EXPLANATION:

your ANSWER>9x^2+25-30x-y^2

Discussion

36.	Find the length and breath of the rectangle given below if the perimeter is 72 cmx +45x - 4
Answer» Answer: Let the BREADTH be x+4 and LENGTH be 5x-4 Perimeter of rectangle is 72cm 2(l+b)=72 2(x+4+5x-4)=72 6x=36 x=6 Substitute x value to get length and breadth. breadth=x+4 =>10cm length=5x-4 =>26cm HOPE THIS HELPS YOU BUDDY ✌️ PLEASE MARK IT AS BRAINLIEST! #BaKiNg BrAiN

36.

Find the length and breath of the rectangle given below if the perimeter is 72 cmx +45x - 4

Answer»

Answer:

Let the BREADTH be x+4 and LENGTH be 5x-4

Perimeter of rectangle is 72cm

2(l+b)=72

2(x+4+5x-4)=72

6x=36

x=6

Substitute x value to get length and breadth.

breadth=x+4

=>10cm

length=5x-4

=>26cm

HOPE THIS HELPS YOU BUDDY ✌️

PLEASE MARK IT AS BRAINLIEST!

#BaKiNg BrAiN

Discussion

37.	The number of natural number 'n" for which15n + Sn +6- is a natural number is less than
Answer» ANSWER: Hey I HOPE YO have a GUD day

37.

The number of natural number 'n" for which15n + Sn +6- is a natural number is less than

Answer»

ANSWER:

Hey I HOPE YO have a GUD day

Discussion

38.	Please its urgent!!!
Answer» ANSWER: $there \: is \: two \: methods \: to \: solve \\ if \: you \: know \: basics \: then \: follow \: the \: factorization \: process \: or \\ divide \: f(x) \: by \: g(x) \: the \: remainder \: is \: come \: that \: need \: to \: substract \: from \: f(x)$

38.

Please its urgent!!!

Answer»

ANSWER:

$there \: is \: two \: methods \: to \: solve \\ if \: you \: know \: basics \: then \: follow \: the \: factorization \: process \: or \\ divide \: f(x) \: by \: g(x) \: the \: remainder \: is \: come \: that \: need \: to \: substract \: from \: f(x)$

Discussion

39.	7+77+777+......................(77777..........7)(20digit number) =which digit come in 10th place number and 1000th place number
Answer» ANSWER: The NUMBER is 7 which COMES in 10th place and 1000th place

39.

7+77+777+......................(77777..........7)(20digit number) =which digit come in 10th place number and 1000th place number

Answer»

ANSWER:

The NUMBER is 7 which COMES in 10th place and 1000th place

Discussion

40.	If A and B are any two sets then A u (An B) is equal to
Answer» A u(ANB) = A n(AUB) For EXAMPLE: If A={1,2,3} B={4,5,6} A u(AnB) = {1,2,3} An(AuB)= {1,2,3}

40.

If A and B are any two sets then A u (An B) is equal to

Answer»

A u(ANB) = A n(AUB)

For EXAMPLE:

If

A={1,2,3}

B={4,5,6}

A u(AnB) = {1,2,3}

An(AuB)= {1,2,3}

Discussion

41.	What should be added to 63.58 to get 90 ?
Answer» ANSWER: 26.42 Step-by-step EXPLANATION: 90 - 63.58= 26.25

41.

What should be added to 63.58 to get 90 ?

Answer»

ANSWER: 26.42

Step-by-step EXPLANATION: 90 - 63.58= 26.25

Discussion

42.	Rationalise the denominator of 5/4root2+3root3
Answer» ANSWER: MARK it as BRAINLIEST if U LIKE

42.

Rationalise the denominator of 5/4root2+3root3

Answer»

ANSWER:

MARK it as BRAINLIEST if U LIKE

Discussion

43.	(3+2√2)^-3+(3-2√2)^-3
Answer» ANSWER: Step-by-step EXPLANATION: BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

43.

(3+2√2)^-3+(3-2√2)^-3

Answer»

ANSWER:

Step-by-step EXPLANATION:

BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

Discussion

44.	a rich merchant has 440kg first quality rice, 512 kg second quality and 416kg third quality of rice. He packs them and sells them in bags.each bag contains exactly one quality and has the same quantity of rice. 8kg of rice of each quality is left.What is the least total number of rice bags he packed
Answer» Lets subtract 8 from each number. 440-8= 432 512-8 = 504 416-8 = 408 ATQ, All the three rice of 432 kgs, 504 kgs and 408 kgs are subdivided (packed) into SMALLER bags such that each group consists of equal amount of rice and no more rice is left. So we have to find the HCF of these numbers 2 \| 432, 504, 408 2 \| 216, 252, 204 2 \| 108, 126, 102 3 \| 54, 63, 51 \| 18, 21, 17 18, 21 and 17 don't share a common factor. Hence HCF = 2 × 2 × 2 × 3 = 24 Least total of no.of rice bags packed = 432/24 + 504/24 + 408/24 = 18 + 21 + 17 = 56 Hope it helps!!!

44.

a rich merchant has 440kg first quality rice, 512 kg second quality and 416kg third quality of rice. He packs them and sells them in bags.each bag contains exactly one quality and has the same quantity of rice. 8kg of rice of each quality is left.What is the least total number of rice bags he packed

Answer»

Lets subtract 8 from each number.

440-8= 432

512-8 = 504

416-8 = 408

ATQ,

All the three rice of 432 kgs, 504 kgs and 408 kgs are subdivided (packed) into SMALLER bags such that each group consists of equal amount of rice and no more rice is left.

So we have to find the HCF of these numbers

2 | 432, 504, 408

2 | 216, 252, 204

2 | 108, 126, 102

3 | 54, 63, 51

| 18, 21, 17

18, 21 and 17 don't share a common factor.

Hence HCF = 2 × 2 × 2 × 3 = 24

Least total of no.of rice bags packed

= 432/24 + 504/24 + 408/24

= 18 + 21 + 17

= 56

Hope it helps!!!

Discussion

45.	9999×999+111=?????????
Answer» Step-by-step explanation: 9999×999+111 = 9989001 + 111 = 9989112

45.

9999×999+111=?????????

Answer»

Step-by-step explanation:

9999×999+111

= 9989001 + 111

= 9989112

Discussion

46.	4 by 5 of a number is greater than 1 by 3 of the same number by 7. Find the number
Answer» ANSWER: $\frac{4}{5 } \times x = \frac{1}{3} + 7 \\ x = \frac{22}{3} \times \frac{5}{4} \\ x = \frac{55}{6} = 9 \frac{1}{6}$

46.

4 by 5 of a number is greater than 1 by 3 of the same number by 7. Find the number

Answer»

ANSWER:

$\frac{4}{5 } \times x = \frac{1}{3} + 7 \\ x = \frac{22}{3} \times \frac{5}{4} \\ x = \frac{55}{6} = 9 \frac{1}{6}$

Discussion

47.	Help please tell step by step
Answer» Answer: hello mate, 1)0.0327..... LET x = o.o327 27...-i since the repeating block 27 has 2 digit so on both side we will MULTIPLY by 100 100x =3.272727....-ii sub I from ii 99x= 3.24 x = 3.24/99 in this way u can do all QUESTION.. I HOPE it helps u

47.

Help please tell step by step

Answer»

Answer:

hello mate,

1)0.0327.....

LET x = o.o327 27...-i

since the repeating block 27 has 2 digit so on both side we will MULTIPLY by 100

100x =3.272727....-ii

sub I from ii

99x= 3.24

x = 3.24/99 in this way u can do all QUESTION..

I HOPE it helps u

Discussion

48.	if profit percentage of one product is 12% and overall profit percentage is 15%. find second product profit percentage.
Answer» profit PERCENT of ONE product is 12% overall profit percentage is 15 % second product profit percentage = 15%-12%= 3% 3% is ANSWER ...... I hope it's HELP u✌✌

48.

if profit percentage of one product is 12% and overall profit percentage is 15%. find second product profit percentage.

Answer»

profit PERCENT of ONE product is 12%

overall profit percentage is 15 %

second product profit percentage =

15%-12%= 3%

3% is ANSWER

...... I hope it's HELP u✌✌

Discussion

49.	Answer this question friends
Answer» Answer: 11 YEARS MAI PRICE DEPRECIATED by ₹1200

49.

Answer this question friends

Answer»

Answer:

11 YEARS MAI PRICE DEPRECIATED by ₹1200

Discussion

50.	If root 3 is equal to 1.73 2 then the value of one by root 3 minus 1
Answer» ANSWER: Step-by-step EXPLANATION: BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

50.

If root 3 is equal to 1.73 2 then the value of one by root 3 minus 1

Answer»

ANSWER:

Step-by-step EXPLANATION:

BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

Discussion

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Help please tell step by step

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Answer this question friends