332354 + Interview Questions in Secondary School in Math

1.	The given figure shown an isosceles triangle in which AB=AC AB=(4X-3)cm AC= (3X+5)cm BC=(2X+3)cm
Answer» 4x-3=3x+5;x=8; ab=29; ac=29; bc=19

Discussion

2.	Using prime factorization method find the hcf and lcm of 30 72 and 432 also show that hcf into lcm is not equal to product of three numbers
Answer» HOPE this HELPS you...✌✌

Discussion

3.	a petrol consumption for first three month is 88 liter and next 9 month is 152 literwhat is the average consupution for the whole year how to solve
Answer» Consuption for 3 months = 88 LTRS consuption for NEXT 9 MONTH = 152 ltrs total consuption = 88+152=240 ltrs average consuption for whole year = total consuption/12 = 240/12 20 ltrs HOPE! IT HELPS YOU.

Discussion

4.	How much area we can paint by 1 litre paint?
Answer» We can PAINT 1m² AREA by 1 LITRE of paint

Discussion

5.	The sum of 1st 7 term of an a.p. is 63 and the sum of its next 7term is 161 find 28th term of this a.p.
Answer» The sum of 1st 7 term of an a.p. is 63 so, a + (a+d) + (a+2d) + (a+3d) + (a+4d) + (a+5d) + (a+6d) = 63 7a + 21d = 63 7(a+3d) = 63 a+3d = 63/7 a+3d = 9 a = 9 - 3d..............(1) the sum of its next 7term is 161 so, (a+7d) + (a+8d) + (a+9d) + (a+10d) + (a+11d) + (a+12d) + (a+13d) = 161 7a + 70d = 161 7(a+10d) = 161 a + 10d = 161/7 a + 10d = 23..............(2) substitute (1) in (2) 9 - 3d + 10d = 23 7d = 23 - 9 7d = 14 d = 14/7 d = 2 substitute d in (1) a = 9 - 32 a = 9-6 a = 3 28th term , t(n) = a + (n-1)d n = 28 a = 3 d = 2 so, t(28) = 3 + (28-1)2 = 3 + 27*2 = 3 + 54 = 57

Discussion

6.	If an isosceles triangle, angle at top vertex is twice the sum of the base angles.find all the exterior angles of the triangle?
Answer» 270 DEGREE B is the ANSWER

Discussion

7.	Two fair dice are rolled what is probability of sum less than or equal to4
Answer» Ss=36 n(a)=dice1+dice2<=4 n(a)= 6 p(a)=6/36 p(a)=0.166

Discussion

8.	Two cars a and b ( starting , at the same time, from same point) are moving with a average speed of 40km/hr and 50km/hr respectively,) in the same direction. find how far will car b from car a after 3hours
Answer» PLZ MARK IT AS BRAINLIEST ANSWER. AND CLICK THAT ♥.

Discussion

9.	Two numbers are in the ratio 5:19. if the first number is 10, then calculate the other number
Answer» Your SOLUTION FRIEND

Discussion

10.	Two brands of chocolates are available in packs of 24 na d15 respectively if i need to buy an equal number if chocolates of both kinds what is the least no. if boxes of each kind i would need to buy
Answer» 8packets of = d=15×8=120 5packets of = Na=24×5 =120

Discussion

11.	Triangle, rectangle,pentagon, heptagon. choose the odd man out
Answer» HELLO dear, The answer will be RECTANGLE The rectangle will be ODD one out, because triangle has 3 sides (3 is odd) Rectangle has 4 sides (4 is even) Pentagon has 5 sides (5 is odd) and Heptagon has 7 sides (7 is odd) HOPE it helps.

Discussion

12.	The volume of a cone with circular base is 216πcm3 if the base radius is9cm then find height of the cone sol
Answer» VOLUME of the CONE = 216 Π cu.cm Radius of the cone = 9 cm (1/3) Π r² H = 216 Π (9)² h = 216 X 3 h = 216 x 3 x (1/9) (1/9) h = 24/3 h = 8 cm Required HEIGHT of

Discussion

13.	Find the smallest number by which 3645must be divided so that it becomes a perfect square. Also find the square root of the results number
Answer» Your ANSWER is here PLEASE MARK me as BRAINLISTS

Discussion

14.	He sum of a number and its reciprocal is 10/3 then the numbers are
Answer» i HOPE this is the answer that u are LOOKING for.if it is the answer that u are looking for then PLZZZZ MARK this answer as brainliest answer

Discussion

15.	A monomial is also a polynomial
Answer» Yahhh because MONOMIALS is type of POLYNOMIAL whose highest power is ONE axample are x+2 ,x-3 ,x-5; ETC

Discussion

16.	Given an array and a number x find the set of numbers whose sum is less than x but closest to it.
Answer» If the array is 1,4,7.... and the number is 100 we have to find sum of 1,4,7... just SHORT of 100. For an A.P. sum is 0.5n(2a+(n-1)d). With a equals 1 and d=3 putting the equation = 100 gives n a LITTLE above 8 so n=8 and sum of series with 8 TERMS 92.

Discussion

17.	What is the difference between the perimeteres of two concentric circles is 66. find the difference between radius ?
Answer» The PERIMETER of cicle is given by P = 2πr. since the CIRCLES are concentric i.e. shares same centre the difference of the perimeter can be given as P₂ - P₁ = 2π(r₁ - r₂ ) ⇒ 66 = 2π(r₁ - r₂ ) ⇒ 66 = 2(22/7)(r₁ - r₂ ) ⇒ (66/22) = (2/7) (r₁ - r₂ ) ⇒ (3×7) = 2(r₁ - r₂ ) ∴ the difference in the RADIUS is given by (r₁ - r₂ ) = 21/2 ∴ (r₁ - r₂ ) = 11.5 units hope you will get this . For any DOUBT comment below.

17.

What is the difference between the perimeteres of two concentric circles is 66. find the difference between radius ?

Answer»

The PERIMETER of cicle is given by P = 2πr.

since the CIRCLES are concentric i.e. shares same centre the difference of the perimeter can be given as

P₂ - P₁ = 2π(r₁ - r₂ )

⇒ 66 = 2π(r₁ - r₂ )

⇒ 66 = 2(22/7)(r₁ - r₂ )

⇒ (66/22) = (2/7) (r₁ - r₂ )

⇒ (3×7) = 2(r₁ - r₂ )

∴ the difference in the RADIUS is given by

(r₁ - r₂ ) = 21/2

∴ (r₁ - r₂ ) = 11.5 units

hope you will get this . For any DOUBT comment below.

Discussion

18.	Find the measure of arc ADC, if angle OAB = 30° & angle OCB = 50°
Answer» In triangle AOB, Angle OAB = angle OBA ( angles between EQUAL sides are equal) => OBA = 30° So, Angles OAB + OBA + BOA = 180° => 60° + BOA=180°=>Angle BOA=120°Similarly, Angle BOC = 80°Hence, MEASURE of arc ADC = Angle AOC= 360° - (120 + 80)°= 160°

Discussion

19.	How can i construct an angle of 7 1/2 degree
Answer» FIRST DRAW a line segment. Draw a semicircle on it. Draw 60° by putting compass needle on the point where the semicircle meets the line segment and drawing an ARC with the same radius as that of the semicircle. Mark the point where your arc meets the semicircle and draw a DOTTED line to that point from the center. This is your 60° angle. Bisect this angle to GET an angle of 30°. Bisect that 30° angle and you will get a 15° angle. 15° is the double of 7½° Bisect the 15° angle and you have your 7½°angle .....answer

Discussion

20.	Profit and loss chapter RS aggarwal book
Answer» PLEASE my DEAR COMPLETE your QUESTION

Discussion

21.	For what value of k the equation x2 + 2(k - 4) x + 2k = 0 has equal roots ?
Answer» 2(x+kx-4x+k)=0 5x+kx+k=0 d=bxb-4ac

Discussion

22.	There are eaual cow and crane are there in a field. if there leg is 60, how many cow and crane are there?
Answer» 15 COW and 15crane yihryfddgyhetg rygd fhjfd tuhdg.

Discussion

23.	The product of the page numbers of two facing pages of a book is 1806. find out the page numbers
Answer» The PAGE NUMBER be 903

Discussion

24.	For binary number 10101 the number in decimal re will be
Answer» 10101 = 1×2^4 + 0 + 1×2^2 + 0 + 1 = 1× 16 + 1×4 + 1 = 21

Discussion

25.	The mean of a,b,c,d and e is 28 if the mean of a,c,&e is 24 find the mean of b and d
Answer» MEAN of a,b,c,d,e is 28. sum of a,b,c,d and e=5(28)= 140. Mean of a,c and e=24 .Sum of a,c,e =24(3)=72. Sum of b and d =140-72=68.Average of b and d=68/2 =34. 34 is the ANSWER. hope it helps you...

Discussion

26.	ravish bought 100 articles for rs. 4000.he sold 40 of them at a gain of 5%. at what gain per cent must he sell the remaining articles so as to gain 20% on the whole?
Answer» Firstly we have to find 4000+ 4000×20%=rs.4800 Total profit =total sp- total cp =4800-4000 =rs.800 since 100 articles = 800 gain therefore 1...........= 800/100 = rs.8 100 articles = rs 4000 now 1 article = 4000/100 Rs.= 40 Therefore 40......= rs.1600 Gain at 5% on rs.1600 1600+1600×5%=1680 new sp=4800- 1680 =rs.3120 now sp of 60 articles =3120 cp of 60 articles = 40×60=rs.2400 therefore new gain = 3120- 2400 =720 Gain % on 2460 = 720/2400 ×100 =30 %

Discussion

27.	PLS ANSWER THIS FAST.............I WILL MARK IT AS BRAINLIEST!!!!The polynomials ky³+3y²-3 and 2y³-5y+k when divided by (y-4)leave the same remainder in each case.find the value of k
Answer» ACCORDING to me ANSWER is k=1

Discussion

28.	Find the sum of all natural numbers between 100 and 200 which are mulitiples of 3
Answer» SUM of NATURAL no. detween 100 and 200 will be 4800

Discussion

29.	Find the sum of the square of first n even natural numbers.
Answer» 01234567i9oyu7890ui8bj9ojji9ojiikjiojjiikjijjjjjnjjnjjjnjjnnnnnnbbbbbbbnnnnnnnnnnbbbbb bbbbnnjjjjjjnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnbbnnnnnnnnnbnnnnnnnnnnnbbbbbbbbbbbbbbbbbbbnnnnnnnn5678890

Discussion

30.	find the ratio in which rice at n.20 a kg be mixed with rice at 't5.70 a kg to produce a mixture worth ????6.30 a kg.
Answer» Can not RECOGNIZE QUESTION

Discussion

31.	A man had Rs.55638579. He gave Rs.28936555 to his wife & Rs.11111111 to his daughter & the rest to his son. How much money was received by the son?
Answer» He GAVE NOTHING to his SON 15590913

Discussion

32.	The number 0.121212 in the form of p/q is equal to
Answer» Answer: $\frac{4}{33}$ Step-by-step explanation: LET X = 0.121212 ---eqn1 100x = 12.1212. ---eqn2 On subtracting equation (1) from equation (2) => 99X = 12 $x = \frac{12}{99} = \frac{4}{33}$

32.

The number 0.121212 in the form of p/q is equal to

Answer»

Answer:

$\frac{4}{33}$

Step-by-step explanation:

LET X = 0.121212 ---eqn1

100x = 12.1212. ---eqn2

On subtracting equation (1) from equation (2) =>

99X = 12

$x = \frac{12}{99} = \frac{4}{33}$

Discussion

33.	The number divided by 3 is refuced by 20 the numvet is
Answer» LET no. to be X so. . a/q , x-x/3=20 2x/3=20 x=30 so. .... no.is 30

Discussion

34.	Write a Pythagorean triplet if one number is 14
Answer» The answer is in the image PLZ SEE it I SOLVE this answer for u please MARK me as brainlist

Discussion

35.	Find the missing term in the below sequence: 1 1 4 25 196 __ 17424
Answer» The ANSWER would be "1764." Each TERM is the square of NUMBERS so you could find the RULE of the data set in order to find the missing sequence. $1 \\1 \\4\\ 25\\ 196 __ \\\\174\\\\24$ Hope this helps!

35.

Find the missing term in the below sequence: 1 1 4 25 196 __ 17424

Answer»

The ANSWER would be "1764." Each TERM is the square of NUMBERS so you could find the RULE of the data set in order to find the missing sequence.

$1 \\1 \\4\\ 25\\ 196 __ \\\\174\\\\24$

Hope this helps!

Discussion

36.	Find the no. of sides of a polygon of exterior ange 30 degrees
Answer» EXTERIOR ange= 30° (( Interior ange= 180-30°=150.. Not NEEDED 4 the ANSWER )) n--no: of sides of the polygon 30*n=360 n=360÷30=12//

Discussion

37.	The respective ratio between the present ages of son, mother, father and grandfather is 2:7:8:12. the average age of son and mother is 27 years. what will be mother's age after 7 years
Answer» S : M : F : G = 2 : 7 : 8 : 12 Average age of S and M = 27 Son : Mother = S : M = 2: 7 So, S = 2x ; M = 7x (2x + 7x)/2 = 27 ......... (Avg age of them is given.) 9x = 27 * 2 9x = 54 x = 54/9 x = 6 Mother's PRESENT age = M = 7x Mother's present age = M = 76 = 42 Years Mother's Age after 7 years = 42 + 7* = 49 Years.

37.

The respective ratio between the present ages of son, mother, father and grandfather is 2:7:8:12. the average age of son and mother is 27 years. what will be mother's age after 7 years

Answer»

S : M : F : G = 2 : 7 : 8 : 12

Average age of S and M = 27

Son : Mother = S : M = 2: 7

So, S = 2x ; M = 7x

(2x + 7x)/2 = 27 ......... (Avg age of them is given.)

9x = 27 * 2

9x = 54

x = 54/9

x = 6

Mother's PRESENT age = M = 7x

Mother's present age = M = 7*6 = 42 Years

Mother's Age after 7 years = 42 + 7

= 49 Years.

Discussion

38.	There are five types of envelopes and four types of stamps in a post office. how many ways are there to buy an envelope and a stamp?
Answer» There are 9 WAYSTO BUY

Discussion

39.	The measure of each interior angle of a regular polygon of n sides is given
Answer» The formula to DERIVE the measures of each interior ANGLE of a REGULAR polygon = 》 ( n-2 )×180/n

Discussion

40.	Find out the wrong number in given sequence : 5 16 6 16 7 16 9
Answer» Terms at ODD places are 5 6 7 8 ETC. And each TERM at even place is 16. So, 9 is wrong

Discussion

41.	The population of the city increased by 20% and became 900000. the original population of the city was:
Answer» To FIND the answer to this QUESTION ask yourself this question: What is 20% of 900,000? Here is your answer: 900000/X=100/20 (900000/x)x=(100/20)x 900000=5x 900000/5=x 180000=x x=180000* Therefore the original POPULATION of the city was "180,000." Hope this HELPS!

41.

The population of the city increased by 20% and became 900000. the original population of the city was:

Answer»

To FIND the answer to this QUESTION ask yourself this question: What is 20% of 900,000?

Here is your answer:

900000/X=100/20

(900000/x)*x=(100/20)*x

900000=5*x

900000/5=x

180000=x

x=180000

Therefore the original POPULATION of the city was "180,000."

Hope this HELPS!

Discussion

42.	Find out the ratio whose value is 2/3 and the anticident is 18
Answer» 2/3×9/9 =18/27 here ANTICIDENT VALUE is 18

Discussion

43.	The numerator of a fraction is one less than its denominator.if 3 is added to each of its numerator and denominator ,then the fraction is increased by 3/28. find the fraction
Answer» The ANSWER will be EITHER 3/4 or 8/7

Discussion

44.	The polynomials p(t) = 4t3 - st2 + 7 and q(t) = t2 + st + 8 leave the same remainder when divided by (t - 1). find the value of s.
Answer» ACCORDING to the QUESTION ANSWER is s=1

Discussion

45.	Solve the following equation nd also check your result in each case: 1/2x+7x-6=7x+1/4
Answer» 1/2x+7x-6=7x+1/4 1/2x+7x-7x=1/4+6 1/2x=(1+24)/4 1/2x=25/4 x=25/4*2 x=25/2

Discussion

46.	Find all positive integers n for which n^2+96 is a perfect square
Answer» 2 , 5 , 10 are INTEGER for N

Discussion

47.	The average of three numbers is 17. the average of two of these numbers is 25.what is the third number?
Answer» LET the NUMBER to be found=X let the other 2 NUMBERS= x and y (y+z)/2=25 ∴y+z=50 (x+y+z)/3=17 (x+50)/3=17 (x+50)=51 ∴x=1

47.

The average of three numbers is 17. the average of two of these numbers is 25.what is the third number?

Answer»

LET the NUMBER to be found=X

let the other 2 NUMBERS= x and y

(y+z)/2=25

∴y+z=50

(x+y+z)/3=17

(x+50)/3=17

(x+50)=51

∴x=1

Discussion

48.	The average age of 40 students of a class is 18 years. when 20 new students are admitted to the same class,the average age of the class is increased by 6 months. the average age of newly admitted students is
Answer» average AGE of 40 students = 18 years = 216 months. total age of 40 students = 40*18 = 720 years = 8640 months. when 20 students admitted, the average age of 60 students = 18.5 years = 222 months. and the total age of the 60 students = 1110 years = 13320 months. then, total age of 20 students = 1110 - 720 = 390 years = 4680 months. average age of 20 students = 390/20 years, or 4680/20 months = 19.5 = 19 years 6 months, or 234 months.

48.

The average age of 40 students of a class is 18 years. when 20 new students are admitted to the same class,the average age of the class is increased by 6 months. the average age of newly admitted students is

Answer»

average AGE of 40 students = 18 years = 216 months.

total age of 40 students = 40*18 = 720 years = 8640 months.

when 20 students admitted,

the average age of 60 students = 18.5 years = 222 months.

and the total age of the 60 students = 1110 years = 13320 months.

then, total age of 20 students = 1110 - 720 = 390 years = 4680 months.

average age of 20 students = 390/20 years, or 4680/20 months

= 19.5 = 19 years 6 months, or 234 months.

Discussion

49.	Find six angles for which sin theta=-√3/2
Answer» 300 , 660 , 1020 , 1380 , 1740 , 2100 , 2460 , 2820 , 3180

Discussion

50.	Solution the average of the first four of five numbers is 40 and that of the last four numbers is 60. the difference of the last and the first number is:
Answer» DIFFERENCE between 1ST and LAST will be 80

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The given figure shown an isosceles triangle in which AB=AC AB=(4X-3)cm AC= (3X+5)cm BC=(2X+3)cm

Using prime factorization method find the hcf and lcm of 30 72 and 432 also show that hcf into lcm is not equal to product of three numbers

a petrol consumption for first three month is 88 liter and next 9 month is 152 literwhat is the average consupution for the whole year how to solve

How much area we can paint by 1 litre paint?

The sum of 1st 7 term of an a.p. is 63 and the sum of its next 7term is 161 find 28th term of this a.p.

If an isosceles triangle, angle at top vertex is twice the sum of the base angles.find all the exterior angles of the triangle?

Two fair dice are rolled what is probability of sum less than or equal to4

Two cars a and b ( starting , at the same time, from same point) are moving with a average speed of 40km/hr and 50km/hr respectively,) in the same direction. find how far will car b from car a after 3hours

Two numbers are in the ratio 5:19. if the first number is 10, then calculate the other number

Two brands of chocolates are available in packs of 24 na d15 respectively if i need to buy an equal number if chocolates of both kinds what is the least no. if boxes of each kind i would need to buy

Triangle, rectangle,pentagon, heptagon. choose the odd man out

The volume of a cone with circular base is 216πcm3 if the base radius is9cm then find height of the cone sol

Find the smallest number by which 3645must be divided so that it becomes a perfect square. Also find the square root of the results number

He sum of a number and its reciprocal is 10/3 then the numbers are

A monomial is also a polynomial

Given an array and a number x find the set of numbers whose sum is less than x but closest to it.

What is the difference between the perimeteres of two concentric circles is 66. find the difference between radius ?

Find the measure of arc ADC, if angle OAB = 30° & angle OCB = 50°

How can i construct an angle of 7 1/2 degree

Profit and loss chapter RS aggarwal book

For what value of k the equation x2 + 2(k - 4) x + 2k = 0 has equal roots ?

There are eaual cow and crane are there in a field. if there leg is 60, how many cow and crane are there?

The product of the page numbers of two facing pages of a book is 1806. find out the page numbers

For binary number 10101 the number in decimal re will be

The mean of a,b,c,d and e is 28 if the mean of a,c,&e is 24 find the mean of b and d

ravish bought 100 articles for rs. 4000.he sold 40 of them at a gain of 5%. at what gain per cent must he sell the remaining articles so as to gain 20% on the whole?

PLS ANSWER THIS FAST.............I WILL MARK IT AS BRAINLIEST!!!!The polynomials ky³+3y²-3 and 2y³-5y+k when divided by (y-4)leave the same remainder in each case.find the value of k

Find the sum of all natural numbers between 100 and 200 which are mulitiples of 3

Find the sum of the square of first n even natural numbers.

find the ratio in which rice at n.20 a kg be mixed with rice at 't5.70 a kg to produce a mixture worth ????6.30 a kg.

A man had Rs.55638579. He gave Rs.28936555 to his wife & Rs.11111111 to his daughter & the rest to his son. How much money was received by the son?

The number 0.121212 in the form of p/q is equal to

The number divided by 3 is refuced by 20 the numvet is

Write a Pythagorean triplet if one number is 14

Find the missing term in the below sequence: 1 1 4 25 196 __ 17424

Find the no. of sides of a polygon of exterior ange 30 degrees

The respective ratio between the present ages of son, mother, father and grandfather is 2:7:8:12. the average age of son and mother is 27 years. what will be mother's age after 7 years

There are five types of envelopes and four types of stamps in a post office. how many ways are there to buy an envelope and a stamp?

The measure of each interior angle of a regular polygon of n sides is given

Find out the wrong number in given sequence : 5 16 6 16 7 16 9

The population of the city increased by 20% and became 900000. the original population of the city was:

Find out the ratio whose value is 2/3 and the anticident is 18

The numerator of a fraction is one less than its denominator.if 3 is added to each of its numerator and denominator ,then the fraction is increased by 3/28. find the fraction

The polynomials p(t) = 4t3 - st2 + 7 and q(t) = t2 + st + 8 leave the same remainder when divided by (t - 1). find the value of s.

Solve the following equation nd also check your result in each case: 1/2x+7x-6=7x+1/4

Find all positive integers n for which n^2+96 is a perfect square

The average of three numbers is 17. the average of two of these numbers is 25.what is the third number?

The average age of 40 students of a class is 18 years. when 20 new students are admitted to the same class,the average age of the class is increased by 6 months. the average age of newly admitted students is

Find six angles for which sin theta=-√3/2

Solution the average of the first four of five numbers is 40 and that of the last four numbers is 60. the difference of the last and the first number is: