332354 + Interview Questions in Secondary School in Math

1.	3/8+7/12. Plz help me
Answer» HEY there!! . ANSWER:- $\frac{3}{<klux>8</klux>} + \frac{7}{<klux>12</klux>} = \frac{9 + 14}{24} = \frac{23}{24}$ Thanks 3/8+7/12 LCM of 8 and 12 = 24 so, 3×3+7×2/24=9+14/24=23/24

Discussion

2.	a drum contained 200 liters of watet.7 litets of watet was lost due yo leakage.what percent of watef remained in the drum
Answer» Hope it HELPS.....PLS mark me as BRAINLIEST...PLSSS

Discussion

3.	Plzzzz solve fast yarr find the value of x
Answer» VALUE of x° is (50°+70°) = 120°

Discussion

4.	(secsquare 60-1)=?please solve this
Answer» 60 is a RIGHT ANSWER of this QUESTION

Discussion

5.	Hello please answer This very soon tomorrow is my maths exam can you explain in easy words what is linear symmetry , point symmetry , And rotational symmetry.
Answer» LINEAR symmetry: a line is divided in to TWO EGAL halves is called symmetry.only 1 line divided an object is called linear symmetry. rational symmetry: no.of lines divided ratio. point symmetry: a line divided by mid point. plzz MARK me as brain list.

Discussion

6.	two cones with same base radius 15 cm and height 20 cm are joined together along their base. Find the surface area of the shape so formed. ( use π=3.14)?
Answer» The figure will look somewhat like this. By Pythagoras Theorem, ${l}^{<klux>2</klux>} = {h}^{2} + {r}^{2} \\ {l}^{2} = {15}^{2} + {20}^{2} \\ {l}^{2} = 225 + 400 \\ l = <klux>25</klux>$ So, the TOTAL Surface AREA of the SHAPE so formed = $2 \pi rl$ = 2 × 3.14 × 15 × 25 = 2355 so. Cm

Discussion

7.	Find the breadth of a rectangle whose perimeter is 360cm and length is 102cm
Answer» PERIMETER of rectangle= 2(l+b) 2×(102+ X)= 360 204+2x = 360 2x= 360-204=156 x= 78

Discussion

8.	Find the area following circles given that Radius 5cm solve
Answer» CIRCLE FIGURE has not GIVE

Discussion

9.	Banjos father is 4 time as old as manjo. After 5. Years he will be 3 times as old as his son . Find their present ages
Answer»

Discussion

10.	The product of tow numbers is -23/14 one of them is 7/5. Find the other
Answer» I THINK that it is RIGHT

Discussion

11.	Divide ₹2100 among 2 in ratio 3:4.How much will each get
Answer» LET the VALUE be x 3×x 4×x 3x+4x=2100 7x=2100 x=2100÷7 =300 first share=3×300=900 second share=4×300=1200

Discussion

12.	What is the probability that the total of two dice will be greater than 8 given that the first die is a 6?
Answer» The PROBABILITY is =2/3 I HOPE, you have GET the ANSWER

Discussion

13.	The tangent plane to the surface is perpendicular to the line r(t)=
Answer» The tangent of a CIRCLE makes 90 degrees with the RADIUS of a circle

Discussion

14.	The perimeterof a rectangular sheet is 120 cm if the length is 25 cm find it breath
Answer» P=120cm l=25cm b=? FORMULA of PERIMETER of RECTANGLE =2(l+b) 2(25+x)=120 50+2x=120 120-50=2x 70=2x x=70÷2 x=35

Discussion

15.	the speed of an aeroplane is reduced by 40 km per hour it takes 20 minutes more to cover 1200 find the speed of the aeroplane
Answer» Let the actual speed of the aeroplane be 'x' km/hr So, speed after reduction = (x - 40) km/hr Let the actual time taken by the aeroplane be y hr and the time taken after the speed reduction = y + 20 min = (y + 20/60) = (y + 1/3) hr Total distance = 1200 km So, Distance = speedtime 1200 = xy XY = 1200 y = 1200/x .............(1) After speed reduction, 1200 = (x - 40) (y + 1/3) 1200 = (x - 40) (3y + 1/3) 12003 = (x -40) (3y + 1) Now, substituting the value of y = 1200/x, we get 3600 = (x - 40) (31200/x + 1) 3600 = (x - 40) (3600/x + 1) 3600x = (x - 40) (3600 + x) 3600x = x² + 3600x - 40x - 144000 x² - 40x - 144000 = 0 x² - 400x +360x - 144000 = 0 x(x - 400) + 360 (x - 400) = 0 (x - 400) (x + 360) x = 400 and x = -360 Speed can't be NEGATIVE, so the actual speed of the aeroplane is 400 km/hr substituting the value of y = 1200/x. y = 1200/400 y = 3 hours So, the actual time taken by the aeroplane is 3 hours.

15.

the speed of an aeroplane is reduced by 40 km per hour it takes 20 minutes more to cover 1200 find the speed of the aeroplane

Answer»

Let the actual speed of the aeroplane be 'x' km/hr

So, speed after reduction = (x - 40) km/hr

Let the actual time taken by the aeroplane be y hr

and the time taken after the speed reduction = y + 20 min = (y + 20/60)

= (y + 1/3) hr

Total distance = 1200 km

So,

Distance = speed*time

1200 = x*y

XY = 1200

y = 1200/x .............(1)

After speed reduction,

1200 = (x - 40) (y + 1/3)

1200 = (x - 40) (3y + 1/3)

1200*3 = (x -40) (3y + 1)

Now, substituting the value of y = 1200/x, we get

3600 = (x - 40) (3*1200/x + 1)

3600 = (x - 40) (3600/x + 1)

3600x = (x - 40) (3600 + x)

3600x = x² + 3600x - 40x - 144000

x² - 40x - 144000 = 0

x² - 400x +360x - 144000 = 0

x(x - 400) + 360 (x - 400) = 0

(x - 400) (x + 360)

x = 400 and x = -360

Speed can't be NEGATIVE, so the actual speed of the aeroplane is 400 km/hr

substituting the value of y = 1200/x.

y = 1200/400

y = 3 hours

So, the actual time taken by the aeroplane is 3 hours.

Discussion

16.	Plzzzzz solve argent
Answer» Z=70 because ALTERNATE ANGLE is FORMING angle abd=70 because of VERTICALLY opposite angle straight angle d=180-120=80 x + 70 80=180 x +150=180 x=180-150=30 x=30 external angle adb-straight angle ade=180-120=60 angle edb=dec because alternate angle is forming angle Dec =y=60 because of vertically opposite angle here's your answer x=30, y=60 and z=70.

Discussion

17.	Please solve it fast with figure
Answer» HOPE it HELPS you dear please MARK BRAINLIEST

Discussion

18.	2x3 + 3x2 – 11x - 6It is to find 2x cubed+ 3x squared - 11x-6Pls answer this it's an important question for my exam tommorow
Answer» This is the WAY to FIND it

Discussion

19.	Factorise : 9(a-2)² -16(a+2)². I need the answer to fast
Answer» GIVEN Equation is 9(a - 2)^2 - 16(a + 2)^2 ⇒ [3(a - 2)]^2 - [4(a + 2)]^2 We KNOW that a^2 - b^2 = (a + b)(a - b) ⇒ [3(a - 2) + 4(a + 2)][3(a - 2) - 4(a + 2)] ⇒ (3a - 6 + 4a + 8)(3a - 6 - 4a - 8) ⇒ (7a + 2)(-a - 14) ⇒ -(7a + 2)(a + 14). HOPE it helps!

19.

Factorise : 9(a-2)² -16(a+2)². I need the answer to fast

Answer»

GIVEN Equation is 9(a - 2)^2 - 16(a + 2)^2

⇒ [3(a - 2)]^2 - [4(a + 2)]^2

We KNOW that a^2 - b^2 = (a + b)(a - b)

⇒ [3(a - 2) + 4(a + 2)][3(a - 2) - 4(a + 2)]

⇒ (3a - 6 + 4a + 8)(3a - 6 - 4a - 8)

⇒ (7a + 2)(-a - 14)

⇒ -(7a + 2)(a + 14).

HOPE it helps!

Discussion

20.	15 Marks QuestionSolve this. My exams are near.
Answer» 81+49=130 hope it helps. If you have any PROBLEM then PLEASE ASK in COMMENT BOX.

Discussion

21.	Check whether L is parallel to m in each of the following figures. Give reasons for your answer
Answer» $\mathbb{ELLO \ THERE!}$ -------- WAYS to CHECK If l║m If CORRESPONDING angles are equal, l║m. If co-interior angles are equal, l║m. If alternate interior angles are equal, l║m. If any ONE condition is OBEYED, we can tell the lines are parallel. --------- First lets find angles that are able to be found. ∠PQS + 60° = 180° (Linear pair) ∠PQS = 180° - 60° ∠PQS = 120° Now, we can see that corresponding angles PQS and PQM are equal, Since corresponding angles are equal the lines are parallel! ---------- $\mathsf{THANK \ YOU}$

21.

Check whether L is parallel to m in each of the following figures. Give reasons for your answer

Answer»

$\mathbb{ELLO \ THERE!}$

--------

WAYS to CHECK If l║m

If CORRESPONDING angles are equal, l║m.

If co-interior angles are equal, l║m.

If alternate interior angles are equal, l║m.

If any ONE condition is OBEYED, we can tell the lines are parallel.

---------

First lets find angles that are able to be found.

∠PQS + 60° = 180° (Linear pair)

∠PQS = 180° - 60°

∠PQS = 120°

Now, we can see that corresponding angles PQS and PQM are equal,

Since corresponding angles are equal the lines are parallel!

----------

$\mathsf{THANK \ YOU}$

Discussion

22.	Pls help with this one
Answer» In the given question, it is STATED that the two arms of the angles' are PARALLEL. Thus these angles can be termed as corresponding angles. Now, as we KNOW, two corresponding angles are always equal. Here, ONE of the angles is given 72°. Thus, the SECOND angel's magnitude will be 72° too. Hence, solved.

Discussion

23.	No.24Please try to solve this question quickly friends
Answer» C. 1227.375 (36×48)-[(9×12×3)+(3.14×15/2×15/2)]

Discussion

24.	A two-digit number is such that the product of its digits is 6. When 9 is added to this number; the digits interchange their places. Find the number.
Answer» Let 2 digit no be XY X× Y= 6 XY + 9 = YX 10 X + Y + 9= 10 Y + X 9X - 9 Y+ 9=0 X- Y + 1=0 ALSO X× Y = 6 X= 6/Y put in x- y+1=0 6/y - y +1=0 6 - y.y+ y= 0 -y.y -2y + 3Y +6 =0 -y(y+2) +3(y+2) =0 y= 3,-2 take y=3 x= 6/3 = 2 SO number is 23

Discussion

25.	How we divided 7290 ÷ 1.1664
Answer» THA ANSWER is 6250 i THINK so

Discussion

26.	The area of Square abcd is 49cm Square find the area of the Square obtained by joining the mid point of the sides of the square abcd
Answer» The area of square OBTAINED by joining the mid points of the square ABCD is 24.5 cm2 •Area of square = side * side GIVEN, area = 49 cm square then , 49 cm square = side * side Side = 7 cm •Side of square FORMED by joining the mid points can by calculated by Pythagoras theorem. •Side of the new square will be (3.5)* √2 cm •Area of the square will be 24.5 cm square

26.

The area of Square abcd is 49cm Square find the area of the Square obtained by joining the mid point of the sides of the square abcd

Answer»

The area of square OBTAINED by joining the mid points of the square ABCD is 24.5 cm2

•Area of square = side * side

GIVEN,

area = 49 cm square

then ,

49 cm square = side * side

Side = 7 cm

•Side of square FORMED by joining the mid points can by calculated by Pythagoras theorem.

•Side of the new square will be (3.5)* √2 cm

•Area of the square will be 24.5 cm square

Discussion

27.	The volume of 2 spheres are in the ratio 27:8, find the ratio pf their CSA.
Answer» VOLUME of a TWO SPHERES are in the RATIO , 27:8 is 3:2 In a sphere, there will be no CSA

Discussion

28.	Stopwatch to calculate timetaken by method usinng parllel.Foreach
Answer» Can you PLS EXPLAIN the QUESTION in BRIEF

Discussion

29.	The mean of the 11 observations is 15 if the mean of first 6 observations is 49 and that of last 6 observations is 52 then find 6th observation
Answer» Your ANSWER ................................................... 49 ..

Discussion

30.	Find 4 rational number different between -1 and -1/2
Answer» 2/-5. 3/8. -16/15. and -17/16

Discussion

31.	What type of triangles are similar.
Answer» When TRIANGLE are conqueñcy triangle are simillar

Discussion

32.	A B C D E F G H and I are assigned value for 1 to 9 but not in that order 4 is assigned to E the difference between E and I is 5 the difference between C and E is 3 what is the value assigned to C
Answer» The value assigned to C is 7. it is given that 4 is assigned to E And DIFFERENCE between E and I is 5 so here I is 9 in the difference between C and R is 3 so the value of C is 7. Hope it helps you please don't FORGET to mark as brainliest

Discussion

33.	find the smallest number which when divided by 20 25 35 and 40 leaves a remainder of 14 19 29 and 34 respectively
Answer» lCM of 20, 25, 35, and 40 = 1400 Now, 20 - 6 = 14 25 - 6 = 19 35 - 6 = 29 40 - 6 = 34 So, (1400 - 6 = 1394) will have remainder of 14, 19, 29, and 34 when DIVIDED by 20, 25, 35, and 40 resp. Ans: 1394

33.

find the smallest number which when divided by 20 25 35 and 40 leaves a remainder of 14 19 29 and 34 respectively

Answer»

lCM of 20, 25, 35, and 40 = 1400

Now,

20 - 6 = 14

25 - 6 = 19

35 - 6 = 29

40 - 6 = 34

So, (1400 - 6 = 1394) will have remainder of 14, 19, 29, and 34 when DIVIDED by 20, 25, 35, and 40 resp.

Ans: 1394

Discussion

34.	Please answer this question 4 marks maths surface area and volumes
Answer» Here is your solution GIVEN:- Length = 22M Breadth = 20m Radius of conical vessel = 2/2 =1m Height of conical vessel =3.5m Now Volume of rainwater=volume of conical vessel = pi ×r ^2 × h =3.14 × 1×1×3.5 =11m^3 Volume of rainwater=22×20×d 11m=440×d d=11/440 d=0.025 d= 0.25cm Hence RAINFALL in cm is 0. 25cm Hope it HELPS you

Discussion

35.	Please answer this one
Answer» PLEASE MARK it as BRAINLIEST

Discussion

36.	What type of triangle are similar .
Answer» CONGRUENT TRIANGLES are same hope it HELPS

Discussion

37.	Find with all steps and identities.a^4-2a^2b^2+b^4
Answer» I HOPE this will be HELPFUL for you

Discussion

38.	Define anglie of scattering
Answer» HELLO !! here is your answer.....☺☺ ✨meaning : Scattering ANGLE is the angle at which a light beam is deflected by a PARTICLE when it comes in contact with it. hope it HELPED :)

38.

Define anglie of scattering

Answer»

HELLO !! here is your answer.....☺☺

✨meaning : Scattering ANGLE is the angle at which a light beam is deflected by a PARTICLE when it comes in contact with it.

hope it HELPED :)

Discussion

39.	Jack wins a $150 in a competition and puts $30 in his bank account. What fraction of the prize money does he keep to spend?pls answer fast , my exam is day after tomorrow
Answer» Prize won by Jack=$150 Prize put in BANK= - $30 Prize money LEFT with him=$120 Therefore, Fraction of prize kept by Jack= $120/$150= 4/5(ANS)

39.

Jack wins a $150 in a competition and puts $30 in his bank account. What fraction of the prize money does he keep to spend?pls answer fast , my exam is day after tomorrow

Answer»

Prize won by Jack=$150

Prize put in BANK= - $30

Prize money LEFT with him=$120

Therefore,

Fraction of prize kept by Jack=

$120/$150= 4/5(ANS)

Discussion

40.	ronit cover 1 complete round of arectangular park in 30 minutes. he cover 5 complete round in how much time
Answer» If he covers 1 one ROUND in 30 MINUTES Then, he COVER 5 round in :- time taken to cover 1 round= 30 minutes . time taken to cover 5 round= (5 × 30) minutes = 150 minutes 150 minutes

Discussion

41.	Two measuring tapes are having 8cm and 25cm length.the least lenth that can be measured by both the tapes exactly is
Answer» Answer: 1 cm. Step-by-step explanation: Considering that we have 2 accurate scales of 25 cm and 8 cm, we have to find a relation between the two scales that allow us to measure the smallest length ACCURATELY. To achieve this, we look for multiples of 25 or 8 that when subtracted from multiples of the other number give the least possible VALUE. Since both the numbers here are real, the minimum value cannot be in decimals. Now, it is observed that on holding the 25 cm SCALE straight and subtracting a value equal to thrice the length of the 8 cm scale (24 cm), we get 1 cm as the measurable value. Since it was mentioned that the smallest value can only be real numbers, 1 cm is least length achievable.

41.

Two measuring tapes are having 8cm and 25cm length.the least lenth that can be measured by both the tapes exactly is

Answer»

Answer:

1 cm.

Step-by-step explanation:

Considering that we have 2 accurate scales of 25 cm and 8 cm, we have to find a relation between the two scales that allow us to measure the smallest length ACCURATELY. To achieve this, we look for multiples of 25 or 8 that when subtracted from multiples of the other number give the least possible VALUE. Since both the numbers here are real, the minimum value cannot be in decimals.

Now, it is observed that on holding the 25 cm SCALE straight and subtracting a value equal to thrice the length of the 8 cm scale (24 cm), we get 1 cm as the measurable value. Since it was mentioned that the smallest value can only be real numbers, 1 cm is least length achievable.

Discussion

42.	during an year an engineering firm manufactured wrist watches at an average rate of 550per week determine the total number of watches produced by the firm for the whole year
Answer» 550 watches per WEEK are manufactured THEREFORE, 550*52=28600 (1 year=52)

42.

during an year an engineering firm manufactured wrist watches at an average rate of 550per week determine the total number of watches produced by the firm for the whole year

Answer»

550 watches per WEEK are manufactured

THEREFORE, 550*52=28600

(1 year=52)

Discussion

43.	A sum of the hcf and lcm of two numbers is 680 and the lcm is 84 times the hcf if one of the numbers is 56 the other is
Answer» NUMBER A× Number B= HCF × LCM 56×X= 680×84 X=57120/56 x=1020

Discussion

44.	The sum of 3 consecutive number is 228, determine the second integer
Answer» $hey \: mate \: here \: is \: your \: answer$ $\textbf{Given That.... }$ The Sum Of 3 Consecutive ( example- (1,2,3) , (6,7,8) ) Numbers Is 228 , We Need To Find Second Number. $\textbf{Solution...}$ Now To Find The Numbers First . Follow The Simple Steps .. 1)) Let The - First Number = X Now As All Are Consecutive. So The Second Number Would Be = X + 1 And Third Number = X + 2 So Now According To Question The Sum Of All The Three Numbers = 228 That is ➡️ $(x)+ (x + 1) + (x + 2) = 228$ Now Opening The Bracket And Finding The Sum We have... $3x + 3 = 228$ Now TAKING 3 To RHS We Have ➡️... $3x = 228 - 3$ That Is ➡️ $3x = 225$ Now Taking 3 To RHS We Have.... $x = \frac{225}{3} = 75$ Now We Know The Value Of X = 75 Now Putting This Value In Assumed Number We Have .... First Number = X = 75 Second Number = X + 1 ➡️ 75 + 1 = 76 And The Third Number = X + 2 ➡️ 75 + 2 = 77 Now The Second Integer Is Equal To 76 $\textbf{Hence The Required Answer Is..}$ $\textbf{Second Integer = 76}$ Thought of The DAY.... "Shine As A Sun BURN As A Fire Think As Einstein Work As Gandhi Live As You ." Thought By Me ...

Discussion

45.	L=20, N=55+x, M=30, C=10, f=x
Answer» What is your MEANING of QUESTION

Discussion

46.	-10 KM towards north means _.
Answer» North DIRECTION KI side 10 KM JANA

Discussion

47.	2marks 5th one trinomtery
Answer»

Discussion

48.	Find the number of sides of a regular polygon if each of its interior angle is 165 degree
Answer» LET the no. of SIDE be n n165° = 180°(n-2) [SUM of interior angles = n(a SINGLE interior angle)] 165n = 180n - 360 -15n = -360 n=24

Discussion

49.	Anubha income is 20% less than shubhadra how much percent is shubhadra more than anubha
Answer» If INCOME of ANUBHA is 20 LESS than subhandra then income of subhandra is 20 more than anubha

Discussion

50.	Convert in metre (1) 723dam
Answer» NUMBER of DECAMETRE MULTIPLY by 10(=) Number of metre 723*10= 7230m

50.

Convert in metre (1) 723dam

Answer»

NUMBER of DECAMETRE MULTIPLY by 10(=) Number of metre

723*10= 7230m

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

3/8+7/12. Plz help me

a drum contained 200 liters of watet.7 litets of watet was lost due yo leakage.what percent of watef remained in the drum

Plzzzz solve fast yarr find the value of x

(secsquare 60-1)=?please solve this

Hello please answer This very soon tomorrow is my maths exam can you explain in easy words what is linear symmetry , point symmetry , And rotational symmetry.

two cones with same base radius 15 cm and height 20 cm are joined together along their base. Find the surface area of the shape so formed. ( use π=3.14)?

Find the breadth of a rectangle whose perimeter is 360cm and length is 102cm

Find the area following circles given that Radius 5cm solve

Banjos father is 4 time as old as manjo. After 5. Years he will be 3 times as old as his son . Find their present ages

The product of tow numbers is -23/14 one of them is 7/5. Find the other

Divide ₹2100 among 2 in ratio 3:4.How much will each get

What is the probability that the total of two dice will be greater than 8 given that the first die is a 6?

The tangent plane to the surface is perpendicular to the line r(t)=

The perimeterof a rectangular sheet is 120 cm if the length is 25 cm find it breath

the speed of an aeroplane is reduced by 40 km per hour it takes 20 minutes more to cover 1200 find the speed of the aeroplane

Plzzzzz solve argent

Please solve it fast with figure

2x3 + 3x2 – 11x - 6It is to find 2x cubed+ 3x squared - 11x-6Pls answer this it's an important question for my exam tommorow

Factorise : 9(a-2)² -16(a+2)². I need the answer to fast

15 Marks QuestionSolve this. My exams are near.

Check whether L is parallel to m in each of the following figures. Give reasons for your answer

WAYS to CHECK If l║m

Since corresponding angles are equal the lines are parallel!

Pls help with this one

No.24Please try to solve this question quickly friends

A two-digit number is such that the product of its digits is 6. When 9 is added to this number; the digits interchange their places. Find the number.

How we divided 7290 ÷ 1.1664

The area of Square abcd is 49cm Square find the area of the Square obtained by joining the mid point of the sides of the square abcd

The volume of 2 spheres are in the ratio 27:8, find the ratio pf their CSA.

Stopwatch to calculate timetaken by method usinng parllel.Foreach

The mean of the 11 observations is 15 if the mean of first 6 observations is 49 and that of last 6 observations is 52 then find 6th observation

Find 4 rational number different between -1 and -1/2

What type of triangles are similar.

A B C D E F G H and I are assigned value for 1 to 9 but not in that order 4 is assigned to E the difference between E and I is 5 the difference between C and E is 3 what is the value assigned to C

find the smallest number which when divided by 20 25 35 and 40 leaves a remainder of 14 19 29 and 34 respectively

Please answer this question 4 marks maths surface area and volumes

Please answer this one

What type of triangle are similar .

Find with all steps and identities.a^4-2a^2b^2+b^4

Define anglie of scattering

Jack wins a $150 in a competition and puts $30 in his bank account. What fraction of the prize money does he keep to spend?pls answer fast , my exam is day after tomorrow

ronit cover 1 complete round of arectangular park in 30 minutes. he cover 5 complete round in how much time

Two measuring tapes are having 8cm and 25cm length.the least lenth that can be measured by both the tapes exactly is

during an year an engineering firm manufactured wrist watches at an average rate of 550per week determine the total number of watches produced by the firm for the whole year

A sum of the hcf and lcm of two numbers is 680 and the lcm is 84 times the hcf if one of the numbers is 56 the other is

The sum of 3 consecutive number is 228, determine the second integer

L=20, N=55+x, M=30, C=10, f=x

-10 KM towards north means _.

2marks 5th one trinomtery

Find the number of sides of a regular polygon if each of its interior angle is 165 degree

Anubha income is 20% less than shubhadra how much percent is shubhadra more than anubha

Convert in metre (1) 723dam