332354 + Interview Questions in Secondary School in Math

1.	5 years ago,nuri was twice as old as sonu.ten years later nuri will be twice as old as sonu.how opd are nuri and sonu?
Answer» Answer: $\huge{\pink{\boxed{\green{\sf{AGE\:OF\:NURI=50\:years}}}}}$ $\huge{\pink{\boxed{\green{\sf{AGE\:OF\:SONU=20\:years}}}}}$ Step-by-step EXPLANATION: $\huge{\pink{\boxed{\green{\underline{\red{\sf{SOLUTION-}}}}}}}$ ☆ Let present age of Nuri = x ☆ Present age of sonu = y ☆ According to given information: $\to (x - 5) = 3(y - 5) \\ \to x - 3y = - 10 - - - - - (<klux>1</klux>)\\ \\ \to (x + 10) = 2(y + 10) \\ \to x - 2y = 10 - - - - - (2)$ ☆ Subtracting eqn (1) from eqn (2) $\to x - 2y - (x - 3y) = 10 - ( - 10) \\ \to x - 2y - x + 3y = 10 + 10 \\ { \pink{ \boxed{ \green{ \therefore y = 20}}}} \\ \\ substituting \:value \: of \: y \: in \: (1) \\ \to x - 3 \times 20 = - 10 \\ \to x - 60 = - 10 \\ \to x = - 10 + 60 \\ { \pink{ \boxed{ \green{ \therefore x = 50}}}} \\ \\ { \pink{ \boxed{ \green{ \therefore age \: of \: nuri = x= 50years}}}} \\ { \pink{ \boxed{ \green{ \therefore age \: of \: sonu = y = 20years}}}}$ _________________________________________

1.

5 years ago,nuri was twice as old as sonu.ten years later nuri will be twice as old as sonu.how opd are nuri and sonu?

Answer»

Answer:

$\huge{\pink{\boxed{\green{\sf{AGE\:OF\:NURI=50\:years}}}}}$

$\huge{\pink{\boxed{\green{\sf{AGE\:OF\:SONU=20\:years}}}}}$

Step-by-step EXPLANATION:

$\huge{\pink{\boxed{\green{\underline{\red{\sf{SOLUTION-}}}}}}}$

☆ Let present age of Nuri = x

☆ Present age of sonu = y

☆ According to given information:

$\to (x - 5) = 3(y - 5) \\ \to x - 3y = - 10 - - - - - (<klux>1</klux>)\\ \\ \to (x + 10) = 2(y + 10) \\ \to x - 2y = 10 - - - - - (2)$

☆ Subtracting eqn (1) from eqn (2)

$\to x - 2y - (x - 3y) = 10 - ( - 10) \\ \to x - 2y - x + 3y = 10 + 10 \\ { \pink{ \boxed{ \green{ \therefore y = 20}}}} \\ \\ substituting \:value \: of \: y \: in \: (1) \\ \to x - 3 \times 20 = - 10 \\ \to x - 60 = - 10 \\ \to x = - 10 + 60 \\ { \pink{ \boxed{ \green{ \therefore x = 50}}}} \\ \\ { \pink{ \boxed{ \green{ \therefore age \: of \: nuri = x= 50years}}}} \\ { \pink{ \boxed{ \green{ \therefore age \: of \: sonu = y = 20years}}}}$

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2.	the lcm of two numbers is 14 times their hcf. the sum of hcf and lcm is 600. if one number is 280, then find the number
Answer» Let the H.C.F be X Let the L.C.M = 14X x + 14x = 600 15x = 600 X = 40 HCF = 40 LCM = 14 X 40 = 560 Other number = 560×40280=80

3.	How to convert 72km/h into m/s
Answer» 72× 1000/ 60 ×60= 72000/3600 = 20 m/s

4.	3 irrational number between 6 and 7
Answer» MARK AS BRAINLIST ANSWER PLEASE

5.	If 4 times a number m is 96 then the value of number m multiply 24 is
Answer» MARK as BRAINLIST ANSWER PLEASE please

6.	The product of two numbers is 1575 and their quotient is is 9÷7find numbers
Answer» LET two number be X&y Product of xy=1575............(1) Ratio of x/y=9/7 X=9/7y..............(2) Putting eq (2) to(1) 9/7yy=1575 9/7y^2=1575 Y^2=15757/9 Y=35ans Putting y in eq(1) X35=1575 X=1575/35 =45 ANS

7.	if alpha and beta are the zeroes of the polynomial p(x)=ax2+bx+c=0 then find alpha square+ beta square
Answer» Here is the RIGHT ANSWER

9.	Pls give me answer from 37 to 42
Answer» Hello There My Dear, 7. What is the average salary (in thousand per month) in the AGE group 40-50 years? (1)40.5 (2) 36.5 (3) 35 (4) 42.5 Answer:42.5 8. What is the fraction of employees getting salary less than the average salary of all the employees? (1)55% (2) 47% (3) 45% (4)50% Answer:55% 9. What is the average age of the employees? (1)47.2 years (2)45.3 years (3) 40.3 years (4) 38.6years Answer. 40.3 years 10. Classify the data of age of each employee in class INTERVAL of 5 years. Which class interval of 5 years has the maximum average salary? (1) 45-50years (2) 50-55 years (3) 35-40 years (4) 40-45 years Answer: 50-55years 11. What is the FREQUENCY (%) in the class interval of 30-35 years? (1)30% (2) 35% (3) 20% (4) 25% Answer: 35% 12. What is the fraction (%) of employees getting salary >=40,000 per month? (1)35% (2) 32% (3)45% (4) 50% Answer: 45%

10.	Find rational number lying between -1/3 and 1/2
Answer» Here is your answer⤵️⤵️ $\frac{-1}{3}$ = $\frac{-1×2}{3×2}$ = $\frac{-2}{6}$ $\frac{1}{2}$ = $\frac{1×2}{3×2}$ = $\frac{2}{6}$ . THEREFORE RATIONAL NUMBERS between $\frac{-2}{6}$ and $\frac{2}{6}$ is $\frac{-1}{6}$ $\frac{1}{6}$

11.	A shopkeeper buys pencils at 10 for Rs10 and sells them at 8 for Rs10.Find the profit percent
Answer» 2percent is the ANSWER

12.	The mass of a brick is 2 kg 750g, what is the total mass of 14 such bricks
Answer» MASS of 1 brick = 2750g ( 1 kg = 1000 g) mass of 14 BRICKS = 2750*14= 38500g =38kg500g

8.	Please give me step by step solution .
Answer» 0

13.	Five years ago a man was seven times as old as his son. Five
Answer» OOPS......UR QUESTION is INCOMPLETE DUDE

14.	Find all zeros of polynomials 3x^4 +6x^3 -2x^2 - 10x -5 two of its zeros are √5/3 and -√5/3
Answer» Hey!!! here is UR ANSWER plzzz mark as BRAINLIEST ✨✨✨

15.	Least no. added to 21018 to get it perfect square
Answer» 7 is LEAST number so that will BECOME perfect SQUARE of 145

16.	Integration of sinx.e^x-(sinx+cosx)e^sinx+cosx/e^2sinx-2e^sinx+1
Answer» YO $2 + 2 \div 2 = 2 \: or \: 4$ ?????

17.	Seven times a number substracted from 29 gives 43. Find the number
Answer» LET 'X' be unknown NUMBER. Then,7*x-29=43. We have to SOLVE this equation to find the unknown number. 7x-29=43. 7x=43+29. 7x=72. x=72/7. Therefore,the unknown number is 72/7.

18.	If 2a-3b=3 and ab=2 find the value of 8a³-27b³
Answer» Hope it helps U MARK my ANSWER as BRAINLIEST

19.	X is equal to 2 + root 3 then find the value of x square + 1 upon x square
Answer» Heya !!! X = 2 + ✓3 1/X = 1/2+✓3 1/X = 1/2 + ✓3 × ( 2 - ✓3 ) / ( 2-✓3 ) 1/X = ( 2 - ✓3 ) / ( 2 + ✓3 ) ( 2 - ✓3 ) 1/X = 2-✓3/ (2)² - ( ✓3 )² 1/X = ( 2 - ✓3 ) Therefore, X + 1/X = ( 2 + ✓3 ) + ( 2-✓3 ) = 4 Squaring both sides, ( X + 1/X)² + (4)² X² + 1/X² + 2 × X × 1/X = 16 X² + 1/X² = 16-2 X² + 1/X² = 14 ★ HOPE IT WILL HELP YOU ★

20.	the perimeter of rectangular swimming pool is 154 meter its length is 2 more than twice is Breadth what are the land and the breath of the pool
Answer» HEYA !!! . . . ★ HOPE IT WILL HELP YOU ★

21.	The perimeter of a rectangle is 240 cm. If its length is increased by 10% and its breadth is decreased by 20%, then we get the same perimeter. Find the length and breadth of the rectangle.
Answer» Tadaa this is the answer! I am SORRY I couldn't type so much INSTEAD I solved and sent you the picture.

22.	Prime factorisation of 1331 please
Answer» The ANSWER is in PIC. HOPR it helps✌

23.	What are the algebra identi
Answer» ALGEBRAIC identity is a statement of EQUALITY which hold for all VALUES of the variables plese mark as brainliest

24.	How many sides does a regular polygon have, if the measure of an exterior angel is 18°?
Answer» HEY mate here is your answer. the polygon would have 20 sides. we know that the SUM of exterior angle of a polygon is 360° so no of sides=360°\18=20° hope it HELPS you.

25.	Please explain it in detail
Answer» By prime FACTORISATION we have 2 \| 32 2 \| 16 2 \| 8 2 \| 4 2 \| 2 . \| 1 We GET 2 × 2 × 2 × 2 × 2 . . . . . . . _______.............. We can make a cubic PAIR of 2 and then 2 × 2 would be left We KNOW that 2 × 2 = 4 Hence, 4 must be divided from 32 to get a perfect cube. Hope it helps dear friend ☺️✌️✌️

Explore topic-wise InterviewSolutions in Current Affairs.

5 years ago,nuri was twice as old as sonu.ten years later nuri will be twice as old as sonu.how opd are nuri and sonu?

the lcm of two numbers is 14 times their hcf. the sum of hcf and lcm is 600. if one number is 280, then find the number

How to convert 72km/h into m/s

3 irrational number between 6 and 7

If 4 times a number m is 96 then the value of number m multiply 24 is

The product of two numbers is 1575 and their quotient is is 9÷7find numbers

if alpha and beta are the zeroes of the polynomial p(x)=ax2+bx+c=0 then find alpha square+ beta square

Please give me step by step solution .

Pls give me answer from 37 to 42

Find rational number lying between -1/3 and 1/2

A shopkeeper buys pencils at 10 for Rs10 and sells them at 8 for Rs10.Find the profit percent

The mass of a brick is 2 kg 750g, what is the total mass of 14 such bricks

Five years ago a man was seven times as old as his son. Five

Find all zeros of polynomials 3x^4 +6x^3 -2x^2 - 10x -5 two of its zeros are √5/3 and -√5/3

Least no. added to 21018 to get it perfect square

Integration of sinx.e^x-(sinx+cosx)e^sinx+cosx/e^2sinx-2e^sinx+1

Seven times a number substracted from 29 gives 43. Find the number

If 2a-3b=3 and ab=2 find the value of 8a³-27b³

X is equal to 2 + root 3 then find the value of x square + 1 upon x square

the perimeter of rectangular swimming pool is 154 meter its length is 2 more than twice is Breadth what are the land and the breath of the pool

The perimeter of a rectangle is 240 cm. If its length is increased by 10% and its breadth is decreased by 20%, then we get the same perimeter. Find the length and breadth of the rectangle.

Prime factorisation of 1331 please

What are the algebra identi

How many sides does a regular polygon have, if the measure of an exterior angel is 18°?

Please explain it in detail

Decimal expansion of a no is terminating if the denominator is

Pls give me the solution with explanation

Help me in 11 que please

A chord of a circle of a radius 6cm is making an angle 60° at the centre .Find the length of the chord...

Please help me in que 5

Answer this , I will mark you as brainless.Sorry , brainliest.

Find atleast 2 irrational number between 2 and3

Find the perimeter of an isosceles triangle right angle triangle having area 200 CM square

The value of the mixed fraction 5 3 by 8

The area of a room is 65 1/4 .if its bredth is 5 7/16 m what is its length

5+1/5=? please answer this

How many successive odd numbers beginning with 5 amount to 480?

Findthe number of terms in each of the following Aps 7; 13 ; 19---205

A sum of ₹800 is the form of denominator of ₹10 and 20.If the total number of notes be 50.Find the number of notes of each kind

What is the prime factor of 289?

25% of a number is more than 18% of 650 by 19. The number is

Find the value of 64 cube root

7 added to thrice a rational number gives 43.find the number,

Find sqaure root by long division method of 0.053361

7/10+2/5+3/2in fraction solve

The square root of 25

Find the volume of cube whose surface area is 150 metre square?

The difference of the digits oof a 2-digit number is 3. If the digits are interchanged and the new number is added to the original number, the result is 77. Find the original number

In triangle ABC is right ange at B angle A=45 if AC=3 under root 2cm.find BC&AB.

A car covers a distance x, while moving at 54 km/hr in 15 sec. the value of x is

26.	Decimal expansion of a no is terminating if the denominator is
Answer» If the DENOMINATOR can be EXPRESSED only in POWERS of 2 and 5 hope it HELPS

27.	Pls give me the solution with explanation
Answer» I had USED the FORMULA of A^n+^m = N+M

28.	Help me in 11 que please
Answer» Money SPEND on eggs => $2 \frac{1}{2} \times 22 \frac{3}{4} \\ \\ \\ = > \frac{5}{2} \times \frac{91}{4} \\ \\ \\ = > \frac{455}{8} \\ \\ \\ => 56.875$ Money left = 90 - 56.875 Money left = ₹33.125

29.	A chord of a circle of a radius 6cm is making an angle 60° at the centre .Find the length of the chord...
Answer» GIVEN, radius of the circle=6cm angle made by the chord at the center=60° let the other angles in the triangle be x because the RADII of the circle are equal we know that, SUM of the angles in the triangle=180° =>x+x+60°=180° =>2x+60°=180° =>2x=120° =>x=60° such that given triangle is EQUILATERAL triangle. hence, in the equilateral triangle all sides are equal. chord of the circle is 6 cm HOPE U CAN UNDERSTAND pls MARK it as brainliest

30.	Please help me in que 5
Answer» 1)COMMUTATIVE PROPERTY 2)associative property 3)distributive property 4)commutative property 5)commutative property 6) MULTIPLICATION property of zero... HOPE it helps you..:-)

31.	Answer this , I will mark you as brainless.Sorry , brainliest.
Answer» This's the ANSWER, SEE the ATTACHMENT

32.	Find atleast 2 irrational number between 2 and3
Answer» It is e=2.718...,√5,√6,√7 & √8

34.	The value of the mixed fraction 5 3 by 8
Answer» HEY! Here is your ANSWER! $5 \times \frac{ 3}{8} = \frac{43}{8}$ $\frac{8 \times 5 + 3}{8} = \frac{43}{8}$ HOPE it HELPS!

35.	The area of a room is 65 1/4 .if its bredth is 5 7/16 m what is its length
Answer» ✴✴ $\huge \bf{HEY \: FRIENDS!!}$ ✴✴ --------------------------------------------------------- ✴✴ $\huge \bf \underline{Here \: is \: your \: answer↓}$ ⬇⏬⤵ ⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇ ▶⏩ $\bf \boxed{It \: is \: given \: that:-)}$ ↪➡ $\bf{area \: of \: a \: room = 65 \frac{1}{4} = \frac{261}{4} {m}^{2} .}$ ↪➡ $\bf{breadth = 5 \frac{7}{16} = \frac{87}{16} m.}$ ▶⏩ Now, ▶⏩ $\huge \boxed{area \: of \: room \: = <klux>LENGTH</klux> \times breadth}$ ↪➡ $\huge{length = \frac{area}{breadth} }$ ↪➡ $\bf{length = \frac{ \frac{261}{4} }{ \frac{87}{16} } .}$ ↪➡ $\bf{length = \frac{261}{4} \times \frac{16}{87} .}$ ↪➡ $\bf{length = 3 \times 4.}$ $\huge \boxed{length = 12m.}$ ✅✅ HENCE, the VALUE of length is finded.✔✔ ✴✴ $\huge \boxed{THANKS}$ ✴✴ ☺☺☺ $\huge \bf \underline{Hope \: it \: is \: helpful \: for \: you}$ ✌✌✌.

36.	5+1/5=? please answer this
Answer» ANS»5+1/5=(25+1)/5=26/5=5.2