332354 + Interview Questions in Secondary School in Math

1.	How can 40 cows be tied on 9 pillars with an odd number on each pillar?
Answer» 40÷9=4R4 So, 4 FULL pillars and 4 REMAINING cows. So'cannot leave those cows LEFT so we need another pillar so it is 5 is is a odd number

Discussion

2.	If one root of the quadratic equation 3x^2-kx+6=0 is 2, then the value of k is
Answer» Putx=2, 3×2²-2k+6=0 12-2k+6=0 18=2k k=9

Discussion

3.	What is the measure of the complementary of 45 degree
Answer» 45 will be COMPLEMENTARY ANGLE.

Discussion

4.	The probability that a nonb leap year has 53sundays is
Answer» Hey mate....there is your ANSWER.... There are 366 days in a leap year, i.e, 1 more than a NORMAL year. Now, 52 weeks make up 344 days (52 x 7 = 344) That means that we already have 52 sundays for sure. Then, we are left with 2 days. Now, these days can be any from a pair of- mon-tues,tues-wed,wed-thurs,thurs-fri,fri-sat,sat-sun,sun-mon. Here favourable cases are sat-sun and sun-mon i.e, 2 cases and total number of cases is 7. So, Probability=number of favourable cases/Total number of cases. Therefore, Probability= 2/7. Hope it HELPS!!!!!

Discussion

5.	Simplify:-____ this copy written plz
Answer» Here is the ANSWER...

Discussion

6.	Aditya spent 6/7 hours to complete his project work while tangy took 3/4 hour to prepare his project. How much more time did Aditya spend in doing his project work?
Answer» Hey BRO here is UR answer... 6/7-3/4 =(24-21)28 =3/28 HOPE it HELPED...

Discussion

7.	a solution is to be kept between 86 degree and 95 degree fahrenheit what is the range of temperature in degree Celsius if the Celsius / fahrenheit conversion formula is given by F = 9 /5 C + 32
Answer» Hiiii dear_______❤️❤️❤️ good evening__________✌️✌️✌️ Given F = C9/5 + 32 => F-32 = C9/5 => C = {5(F-32)}/9 .............1 Now PUT F = 86 in equation 1, we get C = {5(86-32)}/9 => C = (554)/9 => C = 56 => C = 30 Again put F = 95 in equation 1, we get C = {5(95-32)}/9 => C = (563)/9 => C = 5*7 => C = 35 So range of solution is kept it between 30° C and 35° C

Discussion

8.	A number is such that it as much greater than 65 as it is less than 91 .find the number
Answer» The ANSWER to that is: NUMBER is 73

Discussion

9.	What will be the unit digit of the square of the following number 52698
Answer» UNIT DIGIT of SQUARE of no 52698 is 52698 × 52698 = 4 4 is the unit digit

Discussion

10.	the numerator of a fraction is 4 less than the denominator .if 1 is added to both its numerator and denominator , it becomes 1/2 . find the fraction
Answer» Hey Here is your ANSWER, Let denominator be x NUMERATOR = x-4 When 1 is added:- Denominator = x+1 Numerator= x-3 x-3/x+1=1/2 x+1=2(x-3) x+1=2x-6 x-2x=-6-1 -x=-7 x=7 Original Numerator = x-4 = 7-4 = 3 Original Denominator = x = 7 Original Fraction = 3/7 Hope it HELPS you ☺

Discussion

11.	After 16 years, Leena will be three times as old as she is now. Find her present age.
Answer» This is the ANSWER...

Discussion

12.	0 divided by 0 = 1 how?
Answer» Hey mate, see UR ANSWER ... because when we multiply0×1=0 it gives 0

Discussion

13.	If a8 =0then prove that a38=triple of a18
Answer» HOPE this HELPS..... PLZ MARK as BRAINLIEST.....!

Discussion

14.	Solvei)2x-(4-x)=5-xii)(x+3÷7)-(x-2÷9)=8
Answer» (1) 2x-4+x=5-x then, x=9/4

Discussion

15.	40-(-39)+(-5) ; 40+(-39)-(-5) [Which on is greater?]
Answer» 40-(-39)+5 ; 40+(-39)-(-5) 40+39+5 ; 40-39+5 84 ; 6 Ist ONE is GREATER

Discussion

16.	the marks scored by Rohit in two test were 65 and 70 find the minimum marks he should score in the third test to have an average of at least 65 marks
Answer» 60 MARKS is the answer of this let the marks to be scored in third TEST be X (65+70+x) /3=65 135+x=195 x=60

Discussion

17.	X+y+z whole square - x-y-z whole square
Answer» The factorisation of $(<klux>X</klux>+y+z)^{2}-(x-y-z)^{2}$ is equal to "4x(y + z)". Step-by-step EXPLANATION: We have, $(x+y+z)^{2}-(x-y-z)^{2}$ To find, the factorisation of $(x+y+z)^{2}-(x-y-z)^{2}$ = ? ∴ $(x+y+z)^{2}-(x-y-z)^{2}$ Using the algebraic IDENTITY, $a^{2} -<klux>B</klux>^{2} =(a+b)(a-b)$ Here, a = x + y + z and b = x - y - z = [(x + y + z)+(x - y - z)][(x + y + z)- (x - y - z)] = (x + y + z + x - y - z)(x + y + z - x + y + z) = (x + x)( y + z+ y + z) = (2x)( 2y + 2Z) = (2)(2)(x)(y + z) = 4x(y + z) ∴ The factorisation of $(x+y+z)^{2}-(x-y-z)^{2}$ = 4x(y + z) Thus, the factorisation of $(x+y+z)^{2}-(x-y-z)^{2}$ is equal to "4x(y + z)".

17.

X+y+z whole square - x-y-z whole square

Answer»

The factorisation of $(<klux>X</klux>+y+z)^{2}-(x-y-z)^{2}$ is equal to "4x(y + z)".

Step-by-step EXPLANATION:

We have,

$(x+y+z)^{2}-(x-y-z)^{2}$

To find, the factorisation of $(x+y+z)^{2}-(x-y-z)^{2}$ = ?

∴ $(x+y+z)^{2}-(x-y-z)^{2}$

Using the algebraic IDENTITY,

$a^{2} -<klux>B</klux>^{2} =(a+b)(a-b)$

Here, a = x + y + z and b = x - y - z

= [(x + y + z)+(x - y - z)][(x + y + z)- (x - y - z)]

= (x + y + z + x - y - z)(x + y + z - x + y + z)

= (x + x)( y + z+ y + z)

= (2x)( 2y + 2Z)

= (2)(2)(x)(y + z)

= 4x(y + z)

∴ The factorisation of $(x+y+z)^{2}-(x-y-z)^{2}$ = 4x(y + z)

Thus, the factorisation of $(x+y+z)^{2}-(x-y-z)^{2}$ is equal to "4x(y + z)".

Discussion

18.	D(3,-1) can i get the answer of this sum
Answer» 2 is the ANSWER of QUESTION

Discussion

19.	If f(x) is a biquadratic polynomial with leading coefficient 2 such that-f(1)=3, f(2)=7, f(3)=13, f(4)=21.Then find f(15).
Answer» I Know these method for this TYPE of QUESTIONS hope this is RIGHT.:)

Discussion

20.	sum
Answer» The problem is caused by the symbol of binomial coefficient (symbol of Newton), OFTEN used in math: {N}\choose{k} In my DOCUMENT I have FORMULA: $$ P(A) =...

Discussion

21.	The HCF of 40, 60, and 75
Answer» HCF of 40 60 and 75 is 5

Discussion

22.	If 1kg of pure milk contains 0.245 kg of fat. How much fat is there in 12.8kg of milk
Answer» FAT CONTAINED in 1KG of PURE milk =0.245 fat contained in 12.8 kg of milk =12.8 *0.245 =3.136 kg fat

Discussion

23.	Amit was given an increment of 20% on his salary if his new salary is 30600 what was his salary before the increment
Answer» Here is the ANSWER...

Discussion

24.	A clock which gain 10 minutes in 24 hours is set right at 8am on monday. what is the correct time when the clock indicates 1pm on tuesday?
Answer» 1 10PM is the TIME in CLOCK. 1 00 pm is the actual price.

Discussion

25.	Find the zero of the quadrilateral polynomial x square -7
Answer» X^2-7=0 X^2=7 X^2=(√7)^2 So, X=√7

Discussion

26.	If 13 men can complete a piece of work in 36 days, then in how many days will 18 men complete the same work?
Answer» Solution: ____________ We can solve this PROBLEM using Unitary Method. It should be clear that there is an inverse relation between MEN engaged and the time taken to complete any piece of work. 13 men complete the work in = 36 days 1 man will complete the same work in = 36 x 13 ....( inverse relation) 18 men will complete the same work in = (36 x 13) ÷ 18 = 26 So, the required ANSWER is 26 days. ____________________________________ Still any query , please feel free to ASK in the comment box.

26.

If 13 men can complete a piece of work in 36 days, then in how many days will 18 men complete the same work?

Answer»

Solution:

____________

We can solve this PROBLEM using Unitary Method. It should be clear that there is an inverse relation between MEN engaged and the time taken to complete any piece of work.

13 men complete the work in = 36 days

1 man will complete the same work in = 36 x 13 ....( inverse relation)

18 men will complete the same work in = (36 x 13) ÷ 18 = 26

So, the required ANSWER is 26 days.

____________________________________

Still any query , please feel free to ASK in the comment box.

Discussion

27.	Find the side and perimeter of a square whose diagonal is 10 cm
Answer» Diagonal is 10 cm let SIDE of SQUARE be x so by PYTHAGORAS theoram $2 {x}^{2} = {10}^{2} \\ {x}^{2} = 50 \\ x = 5 \sqrt{2}$ now perimeter of square is 4×side so perimeter=20√2

Discussion

28.	What should be added - 11/19 to make the sum 4/5?
Answer» LET the unknown NUMBER be 'X' -11/19 + x =4/5 x=4/5+11/19 x= 76/95 + 55/95 x= 131/95 131/95 should be added to -11/19 to MAKE the sum 4/5

Discussion

29.	Let A = {a, b, c} . From the set of reflexiverelations defined on A, a reflexive relation is –- drawn at random. The probability that it is afunction is(a) 641(b) 321(c) 5121(d) none.
Answer» PROBABLY the FUNCTION is 32

Discussion

30.	Even or odd functions
Answer» ANSWER: THE NUMBER WHICH IS DIVDED BY 2 IS CALLED EVEN NUMBERS. WHICH ARE NOT DIVIDED BY 2 ARE ODD NUMBERS.

30.

Even or odd functions

Answer»

ANSWER:

THE NUMBER WHICH IS DIVDED BY 2 IS CALLED EVEN NUMBERS.

WHICH ARE NOT DIVIDED BY 2 ARE ODD NUMBERS.

Discussion

31.	Plzz slove this question urgently
Answer» HEY is it your ANSWER.

Discussion

32.	Plz give me a ans in this question
Answer» LET honey's present AGE be X -> 6(x+10) -> 6x+60 -> x= -60/6 -> x= -10 so age cannot be in nagative so the present age of honey is 10 pls mark me as BRAINLIEST

Discussion

33.	Plz slove this question urgently
Answer» HEY its your ANSWER GOT it..

Discussion

34.	Solve for x and y : mx - ny = m^2+ n^2 ; x- y = 2n
Answer» Here you GO, there is the ANSWER

Discussion

35.	Explain with process 2^x-7=5^x-4
Answer» ${2}^{x - 7} = {5}^{x - 4} \\ apply \: log \: on \: both \: sides \\ (x - 7)log2 = (x - 4)log5 \\ \frac{(x - 7)}{(x - 4)} = log(5 - 2) \\ x - 7 = xlog3 - 4log3 \\x(1 - log3) = 7 - 4log3 \\ x = \frac{(7 -4 log3)}{(1 - log3)} \\ x = 9.74$

Discussion

36.	Find odd man out from the series in questions below3,5,11,14,17,21,.
Answer» 14 ;in all the no.sgiven above are ODD

Discussion

37.	If 27y=9/3y find y.
Answer» Hope u GOT and if got MARK it BRAIN list

Discussion

38.	A and B are two taps which can fill a tank individually in 10 minutes and 20 minutes respectively. However, there is a leakage at the bottom which can empty a filled tank in 40 minutes. If the tank is empty initially, how much time will both the taps take to fill the tank (leakage is still there)?
Answer» A will TAKE 50 MINS and B will take 2HRS

Discussion

39.	3^x/5 +3^x-10 /10=84Solve for x
Answer» I do not THINK it has a SOLUTION......it has a GRAPH PLZ comment the answer so I can answer u again

Discussion

40.	Solve this plz.... activity based questions
Answer» The PROBABILITY is 1/3

Discussion

41.	my mother is 12 years more than twice my age. After 8 years, my mothers age will be 20 years less than three times my age , find my mothers age .
Answer» Let your age be x. Then your mother's age will be 2X + 12. After 8 YEARS, Your age will be x + 8. Your mother's age will be 3(x + 8) - 20 = 3x + 24 - 20 = 3x + 4. This is equal to 2x + 12 + 8 = 2x + 20 2x + 20 = 3x + 4 3x - 2x = 20 - 4 = x = 16 Your age at now = 16 Your mother's age at now = 2 x 16 + 12 = 32 + 12 = 44 44 is the ANSWER. Hope this MAY be helpful. Please mark my answer as the brainliest if this may be helpful. Thank you. Have a nice day.

41.

my mother is 12 years more than twice my age. After 8 years, my mothers age will be 20 years less than three times my age , find my mothers age .

Answer»

Let your age be x.

Then your mother's age will be 2X + 12.

After 8 YEARS,

Your age will be x + 8.

Your mother's age will be 3(x + 8) - 20 = 3x + 24 - 20 = 3x + 4.

This is equal to 2x + 12 + 8 = 2x + 20

2x + 20 = 3x + 4

3x - 2x = 20 - 4

= x = 16

Your age at now = 16

Your mother's age at now = 2 x 16 + 12 = 32 + 12 = 44

44 is the ANSWER.

Hope this MAY be helpful.

Please mark my answer as the brainliest if this may be helpful.

Thank you. Have a nice day.

Discussion

42.	A can finish an it project in 15 days, b can finish the same project in 12 days. in how many days, both of them can finish 60% of the project?
Answer» A can FINISH in 9 DAYS B can finish in 7.2 days

Discussion

43.	A car owner buys petrol at rs.7.50, rs. 8 and rs. 8.50 per liter for three successive years. what approximately is the average cost per litre of petrol if he spends rs. 4000 each year?
Answer» 4000/7.50=the AVERAGE COST of PETROL at PER YEAR

Discussion

44.	A can do a work in 10 days and b can do it in 15days. in how many days will the work be completed if b leaves 2 days before the completion of the work
Answer» Fguhkuf, I have a GREAT DEAL of MONEY and TIME

Discussion

45.	Product of Tony's age 2 years ago and 3 years hence is 84. Find his presnt age.
Answer» LET's take TONY age as x X-2 x 3 = 84 3X - 6 =84 3x = 84 +6 3x = 90 X = 90 3 x = 30

Discussion

46.	Probability of 52 Sundays in a leap year
Answer» 1/7 is the ANSWER . I GUESS . PLEASE MAKE me BRAINLIEST

Discussion

47.	in a parallelogram ABCD if (2x+35)degree and angle (3x-5)degree.Find:the value of x (ii)measure of each angle of ABCD.
Answer» In a parallelogram ABCD (2x+35)+(3x-5)=180 (ADJACENT angles are supplementary 5x+30=180 5x=180-30 5x=150 x=150/5 x=30 (2x+35)=(2 (30)+35)=(60+35)=95 (3x-5)=(3 (30)-5)=(90-5)=85 so the angles are 95,85,95,85 (as opposite angles are equal in a parallelogram)

Discussion

48.	If x=3+2√2,find the value of x square +1/x square
Answer» $x = 3 + 2 \sqrt{2} \\ \\ \frac{1}{x} = \frac{1}{3 + 2 \sqrt{2} } \times \frac{3 - 2 \sqrt{2} }{3 - 2 \sqrt{2} } \\ \\ \frac{1}{x} = \frac{3 - 2 \sqrt{2} }{ 9 - 8} \\ \\ \frac{1}{x} = 3 - 2 \sqrt{2}$ ____________________ ${x}^{2} = {(3 + 2 \sqrt{2} )}^{2} \\ \\ = 9 + 8 + 12 \sqrt{2} \\ \\ = 17 + 12 \sqrt{2}$ ____________________ ${( \frac{1}{x}) }^{2} = {(3 - 2 \sqrt{2} )}^{2} \\ \\ = 9 + 8 - 12 \sqrt{2} \\ \\ = 17 - 12 \sqrt{2}$ ____________________ ${x}^{2} + ( { \frac{1}{x}) }^{2} = 17 + 12 \sqrt{2} + 17 - 12 \sqrt{2} \\ \\ = 17 + 17 \\ \\ = 34$

Discussion

49.	Find the value of 2m-3=1
Answer» Heya BRO.. i hope my ANSWER will help U...: 2M-3 =1 =>2m = 1+3 =>2m = 4 =>m. = 4÷2 =>m=. 2

Discussion

50.	Find resistance between a and b
Answer» I THINK it is 40(OHM)

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

How can 40 cows be tied on 9 pillars with an odd number on each pillar?

If one root of the quadratic equation 3x^2-kx+6=0 is 2, then the value of k is

What is the measure of the complementary of 45 degree

The probability that a nonb leap year has 53sundays is

Simplify:-____ this copy written plz

Aditya spent 6/7 hours to complete his project work while tangy took 3/4 hour to prepare his project. How much more time did Aditya spend in doing his project work?

a solution is to be kept between 86 degree and 95 degree fahrenheit what is the range of temperature in degree Celsius if the Celsius / fahrenheit conversion formula is given by F = 9 /5 C + 32

A number is such that it as much greater than 65 as it is less than 91 .find the number

What will be the unit digit of the square of the following number 52698

the numerator of a fraction is 4 less than the denominator .if 1 is added to both its numerator and denominator , it becomes 1/2 . find the fraction

After 16 years, Leena will be three times as old as she is now. Find her present age.

0 divided by 0 = 1 how?

If a8 =0then prove that a38=triple of a18

Solvei)2x-(4-x)=5-xii)(x+3÷7)-(x-2÷9)=8

40-(-39)+(-5) ; 40+(-39)-(-5) [Which on is greater?]

the marks scored by Rohit in two test were 65 and 70 find the minimum marks he should score in the third test to have an average of at least 65 marks

X+y+z whole square - x-y-z whole square

The factorisation of is equal to "4x(y + z)".

D(3,-1) can i get the answer of this sum

If f(x) is a biquadratic polynomial with leading coefficient 2 such that-f(1)=3, f(2)=7, f(3)=13, f(4)=21.Then find f(15).

sum

The HCF of 40, 60, and 75

If 1kg of pure milk contains 0.245 kg of fat. How much fat is there in 12.8kg of milk

Amit was given an increment of 20% on his salary if his new salary is 30600 what was his salary before the increment

A clock which gain 10 minutes in 24 hours is set right at 8am on monday. what is the correct time when the clock indicates 1pm on tuesday?

Find the zero of the quadrilateral polynomial x square -7

If 13 men can complete a piece of work in 36 days, then in how many days will 18 men complete the same work?

Find the side and perimeter of a square whose diagonal is 10 cm

What should be added - 11/19 to make the sum 4/5?

Let A = {a, b, c} . From the set of reflexiverelations defined on A, a reflexive relation is –- drawn at random. The probability that it is afunction is(a) 641(b) 321(c) 5121(d) none.

Even or odd functions

Plzz slove this question urgently

Plz give me a ans in this question

Plz slove this question urgently

Solve for x and y : mx - ny = m^2+ n^2 ; x- y = 2n

Explain with process 2^x-7=5^x-4

Find odd man out from the series in questions below3,5,11,14,17,21,.

If 27y=9/3y find y.

A and B are two taps which can fill a tank individually in 10 minutes and 20 minutes respectively. However, there is a leakage at the bottom which can empty a filled tank in 40 minutes. If the tank is empty initially, how much time will both the taps take to fill the tank (leakage is still there)?

3^x/5 +3^x-10 /10=84Solve for x

Solve this plz.... activity based questions

my mother is 12 years more than twice my age. After 8 years, my mothers age will be 20 years less than three times my age , find my mothers age .

A can finish an it project in 15 days, b can finish the same project in 12 days. in how many days, both of them can finish 60% of the project?

A car owner buys petrol at rs.7.50, rs. 8 and rs. 8.50 per liter for three successive years. what approximately is the average cost per litre of petrol if he spends rs. 4000 each year?

A can do a work in 10 days and b can do it in 15days. in how many days will the work be completed if b leaves 2 days before the completion of the work

Product of Tony's age 2 years ago and 3 years hence is 84. Find his presnt age.

Probability of 52 Sundays in a leap year

in a parallelogram ABCD if (2x+35)degree and angle (3x-5)degree.Find:the value of x (ii)measure of each angle of ABCD.

If x=3+2√2,find the value of x square +1/x square

Find the value of 2m-3=1

Find resistance between a and b

The factorisation of $(<klux>X</klux>+y+z)^{2}-(x-y-z)^{2}$ is equal to "4x(y + z)".