Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

A finite line can be extended on its both sides endlessly to get a straight line.State whether the given statement are true or false? Also give reasons for your answers.

Answer»

If u can extend a FINITE line from it's both END endlessly to get a straight line.

because a line has no end, it has TWO hands which u can increase or DECREASE .

So the statement here is TRUE .

2.

3y²-15y+18. factor=?

Answer»

3y^2-9y-6y+18
3y(y-3) -6( y-3)
(3y-6) (y-3)

3.

Circles with same radii are equal.State whether the given statement are true or false? Also give reasons for your answers.

Answer»

Yes , it is true

LET us consider TWO circles with same radii.
when we cut them and overlap one on the other.
The upper one will completely overlap it.
That's why we are ABLE to KNOW that circles with same radii are equal.

4.

All right angles are equal.State whether the given statement are true or false? Also give reasons for your answers.

Answer» YES. All right ANGLES are EQUAL.
An angle of measure 90° is KNOWN as a right angle. SINCE an angle of 90° is a right angle all the right angles are 90° i.e. congruent...
Hence all right angles are equal.
5.

Only one line can pass through a given point.State whether the given statement are true or false? Also give reasons for your answers.

Answer» HEY mate here is ur answer ......

Actually if u mark a point on a SHEET of paper then

u can draw more than ONE line (infinite) which is

passing through it.

Hence the STATEMENT is FALSE.
6.

What is sum of interior angles of a triangle ? Give answer.

Answer»

Hey MATE!!!

HERE IS THE ANSWER

______________________


❣The sum of interior angles of a triangle is 180°.

Hope it HELPS to you.

THANX

=  =  =  =  =  =  =  =

7.

(-10)³+(7)³+(3)³ ,Without actual calculating the cubes, find the value of it.

Answer»

Solution :

************************************
We KNOW that ,

If x + y + Z = 0 , then

x³ + y³ + z³ = 3XYZ

**********************************

Here,

x = (-10 ) , y = 7 , z = 3 ,

Now ,

x + y + z

= -10 + 7 + 3

= 0

Therefore ,

( -10 )³ + 7³ + 3³

= 3xyz

= 3× ( -10 ) × 7 × 3

= - 630

Therefore ,

The VALUE of ( -10 )³ + 7³ + 3³

= - 630

•••••

8.

What is section and midpoint formula?

Answer» HOPE this MAY HELP you..
9.

Which number is divisible by 5809

Answer»

5809 *2, 5809*3, 5809*4,etc no. r divisible by 5809.
* stands for MULTIPLY

10.

(102)³,Evaluate it using suitable identites.

Answer»

(102)^3
=(100+2)^3
=(100)^3+(2)^3+3 (100)^2×2+3(2)^2×100
=1,061,208

11.

(99)³ ,Evaluate it using suitable identites.

Answer» 0
12.

(x-2/3*y)³,Expand it, using suitable identities.

Answer» SOLUTION :

*****************************************
We KNOW the algebraic IDENTITY,

(a-b)³ = a³- 3a²b + 3ab² - b³

*****************************************

Here ,

a = x , b = 2Y/3 ,

Now ,

( x - 2y/3 )³

= x³-3*x²*(2y/3)+3*x*(2y/3)² - (2y/3)³

= x³ - (3x²*2y)/3 + ( 3x*4y²)/9 - 8y³/27

= x³ - 2x²y + 4xy²/3 - 8y³/27

••••
13.

(p+1)³,Expand it, using suitable identities.

Answer»

(a+b)^3= a^3+b^3+3ab (a+b)
= P^3+ 1^3+3*p*1 (p+1)
= p^3+1+3p (p+1)
=p^3+1+3p^2+3p

14.

If a-15=c and a-5=b and b=? The value of a+b+c=122

Answer»

A+b+c=122
a+a-5+a-15=122
3a-20=122
a=142÷3
b=a-5
b=(142÷3)-5
b=127/3 or 42.3 ANS

15.

(x+2y+4z)² ,Expand it, using suitable identities.

Answer»

Solution :

*****************************************
We KNOW the ALGEBRAIC identity ,

(a+b+c)² = a²+b²+c²+2ab+2bc+2ca

******************************************

Now ,

( X + 2y + 4Z

=x²+(2y)²+(4z)²+2x(2y)+2(2y)(4z)+2(4z)x

= x² + 4y² + 16z² + 4xy + 16yz + 8zx

•••••

16.

3p²-24p+36, Factorise it using appropriate identities.

Answer»

Solution :

Given Quadratic expression

3p² - 24p + 36

= 3( p² - 8p + 12 )

Splitting the middle term , we GET

= 3( p² -6P - 2p + 12 )

= 3 [ P( p - 6 ) - 2 ( p - 6 ) ]

= 3[ ( p - 6 )( p - 2 ) ]

= 3(p-6)(p-2)

••••

17.

18a²-50, Factorise it using appropriate identities.

Answer»

Solution :

GIVEN 18a² - 50

= 2( 9a² - 25 )

= 2 [ ( 3A )² - 5² ]

= 2( 3a + 5 )( 3a -5 )

[ SINCE , x² - y² = ( X + y )( x - y ) ]

••••

Therefore ,

18

18.

4x²-y²/25, Factorise it using appropriate identities.

Answer» SOLUTION :

GIVEN 4x² - y²/25

= ( 2X )² - ( y/5 )²

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

[ SINCE , a² - b² = ( a + B )( a - b ) ]

•••••
19.

4y²-4y+1, Factorise it using appropriate identities.

Answer» SOLUTION :

Given Quadratic EXPRESSION is

4y² - 4y + 1

= ( 2y )² - 2 × 2y × 1 + 1²

= ( 2y - 1 )²

[ By algebraic IDENTITY,

a² - 2ab + b² = ( a - b )² ]

= ( 2y - 1 )( 2y - 1 )

••••
20.

Prime factorization of 23232

Answer»

23232=2×2×2×2×2×2×3×11×11

21.

16x²+24xy+9y², Factorise it using appropriate identities.

Answer» SOLUTION :

Given EXPRESSION is

16x² + 24xy + 9y²

= ( 4X )² + 2 * ( 4x ) * ( 3y ) + ( 3y )²

= ( 4x + 3y )²

[ By algebraic identity ,

a² + 2ab + b² = ( a + b )² ]

= ( 4x + 3y )( 4x + 3y )

••••
22.

30.5*29.5, Evaluate the given product without actual multiplication.

Answer»

Solution :

GIVEN 30.5 × 29.5

= ( 30 + 0.5 )( 30 - 0.5 )

= ( 30 )² - ( 0.5 )²

[ By the ALGEBRAIC identity ,

( a + b )( a - b ) = a² - b² ]


= 900 - 0.25

= 899.75

Or

= 899 3/4

••••

23.

501*501, Evaluate the given product without actual multiplication.

Answer»

Here's your answer

Hope it HELPS you......

24.

50*1/2*49*1/2, Evaluate the given product without actual multiplication.

Answer» SOLUTION :

50½ × 49½

= ( 50 + 1/2 )( 50 - 1/2 )

= ( 50 )² - ( 1/2 )²

= 2500 - 1/4

= 2499.75

Or

= 2499 3/4

Therefore ,

50½ × 49½

= 2499.75

••••
25.

(1+x) (1+x) ,Use suitable identities to find the given product.

Answer» ATTACHING the ANSWER .
HOPE its WORTH BRAINLIEST
26.

(x²+1/x²)(x²-1/x²) ,Use suitable identities to find the given product.

Answer» SOLUTION :

*****************************************
We KNOW the ALGEBRAIC IDENTITY :

( a + B )( a - b ) = a² - b²

*****************************************

Now ,

( x² + 1/x² )( x² - 1/x² )

= ( x² )² - ( 1/x² )²

= x⁴ - 1/x⁴

•♪♪♪
27.

(3x+2)(3x-2) ,Use suitable identities to find the given product.

Answer» USE IDENTITY (a+b)×(a-b)=(a^2-b^2)

so here it is

(3X)^2-(2)^2
9x^2-4

hope it will HELP you.
28.

16^4/5=? plzz solve it

Answer»

Here is your ANSWER.

29.

(x-5) (x-5) ,Use suitable identities to find the given product.

Answer» SOLUTION :

******************************************

We know the algebraic identity :

( a - b )² = a² - 2AB + b²

******************************************

Now ,

( x - 5 )( x - 5 )

= ( x - 5 )²

= x² - 2 × x × 5 + 5²

= x² - 10x + 25

Therefore ,

( x - 5 )² = x² - 10x + 25

•••••
30.

(x+5) (x+2) ,Use suitable identities to find the given product.

Answer»

Solution :

***************************************

We KNOW the algebraic identity ,

( x + a )( x + b ) = x² + ( a + b )x + ab

****************************************

Now ,

( x + 5 )( x + 2 )

= x² + ( 5 + 2 )x + 5 × 2

= x² + 7X + 10

Therefore ,

( x + 5 )( x + 2 ) = x² + 7x + 10

••••

31.

X³-2x²-x+2. Factorize it.

Answer»

(x^2-1) (x-2) is your ANSWER

32.

f(x)=4x³+20x²+33x+18,g(x)=2x+3,Use the Factor Theorem to determine whether g(x) is factor of f(x) in each cases.

Answer»

Dear friend,
Here's your answer...
HOPE it HELPS you!!
PLEASE MARK my answer as BRAINLIEST !

33.

f(x)=x³-4x²+x+6, g(x)=x-2,Use the Factor Theorem to determine whether g(x) is factor of f(x) in each cases.

Answer» YES G(X) is a FACTOR of P(x)
34.

f(x)=x³+3x²+3x+1,g(x)=x+1,Use the Factor Theorem to determine whether g(x) is factor of f(x) in each cases.

Answer»

<P>***********************************

Factor Theorem :


Let p(x) be a polynomial of


degree ONE or more than 1


and a is a real number . Then,


i ) x - a , will be a factor of p(x),


if p(a) = 0 ,


Conversely ,


ii ) If x - a is a factor of p(x) , then


p(a) = 0.


*************************************,


Here ,


F(x) = x³ + 3x² + 3X + 1 ,


G(x) = x + 1 ,


g(x) = 0


=> x + 1 = 0


=> x = -1 ,


Therefore ,


ZERO of g(x) is -1.


Now ,


F(-1) = (-1)³ + 3(-1)² + 3(-1) + 1


= -1 + 3 - 3 + 1


= -4 + 4


= 0


Therefore ,


By Factor theorem ,


g(x) is a factor of F(x).


••••••




35.

f(x)=5x³+x²-5x-1,g(x)=x+1 ,Use the Factor Theorem to determine whether g(x) is factor of f(x) in each cases.

Answer» YES G(X) is a FACTOR of P(x).
36.

X+1 ,Find the remainder when x³+3x²+3x+1 is divided by the given Linear polynomial.

Answer» REMAINDER will be 0
37.

F(x)=2x-3 ,Find the zero of the polynomial in give case.

Answer»

Hey mate! here's your answer!

since, f(X) = 2x-3

and to find 0 of the POLYNOMIAL,

so, 2x - 3 = 0
=> 2x = 0+3
=> x = 3/2

that's your answer!
HOPE it was helpful!

38.

F(x)=x-2 ,Find the zero of the polynomial in give case.

Answer»

Zero of the POLYNOMIAL in GIVEN case is zero
hope this may HELP you..

39.

The perimeter of a parrallogram is 80 m.If the larger side is 10 m greater than the smaller side . Then find the length of the side of a parrallogram

Answer»

Here's SOLUTIONS of UR QUESTION

40.

State board solve question easy explain Hindi

Answer» ANSWER of this QUESTION is x=75,y=75,z=75 I HOPE that it is RIGHT
41.

A die is thrown . find the probability of getting a) prime number b) 2 or 4 c) a multiple​ of 2or 3

Answer»

the ANSWER of :a)3/6=1/2

B)2/6=1/3

C)3/6=1/2

42.

IfcosecA=2 THEN find sinA by 1+cos a

Answer»

This is your ANSWER

43.

P(x)=x²-3x+2,Find p(0), p(1) and p(2) for each of the give polynomial.

Answer» HEY MATE

HERE IS UR ANS

p(X) = x^2 -3x +2

if p(0) = (0)^2-3(0)+2

=2



if p(1) = x^2-3x+2

=(1)^2-3(1)+2

=0


ifp(2)= x^2-3x+2

=(2)^2-3(2)+2

=4-6+2

=-2+2
=0

HOPE IT HELPS U DEAR ☺☺☺

ßE ßRAINLY...
44.

P(x)=x²-x +1, Find p(0), p(1) and p(2) for each of the give polynomial.

Answer»

<P>p(0)= 0-0+1=1

p(1)=1-1+1=1

p(2)=4-2+1=3

45.

Find the value of the polynomial 4x² -5x+3, when x =1/2

Answer» \bold{Answer :}

LET us TAKE,

f(X) = 4x² - 5x + 3

When x = 1/2,

f (1/2)

= 4 (1/2)² - 5 (1/2) + 3

= 4 (1/4) - 5/2 + 3

= 1 - 5/2 + 3

= (2 - 5 + 6)/2

= 3/2

#\bold{MarkAsBrainliest}
46.

R² is monomial.Write whether the given statement are True or False. Justify your answer.

Answer» HEY MATE!!

➡The given STATEMENT is true because a monomial has only one TERM and in th given polynomial r² has only one term .


Hope it HELPS to you.

=  =  =  =  =  =  =  =  =  =
47.

The degree of x²+2xy+y² is 2.Write whether the given statement are True or False. Justify your answer.

Answer»

Hey mate!!

➡The GIVEN statement is true because as we know the highest POWER in the given polynomial is the degree of the polynomial and in the given polynomial x²+2xy+y² the highest power is 2.

➡So the statement is CORRECT.


HOPE it HELPS to you.

=  =  =  =  =  =  =

48.

A binomial may have degree 3.Write whether the given statement are True or False. Justify your answer.

Answer»

Hey mate!!!

HERE IS THE ANSWER: -

A binomial may have degree 3 .

✔This STATEMENT is TRUE because binomial has two terms which is COMPARED on the basis of terms .

✔and a polynomial of degree 3 is called a cubic polynomial .

Example:
{ -2x}^{2}  + y
therefore the given statement is true.

hope it helps to you.

49.

Every polynomial is a binomial.Write whether the given statement are True or False. Justify your answer.

Answer» FALSE because a POLYNOMIAL can be BINOMIAL, MONOMIAL, TRINOMIAL
50.

A binomial can have at the most two terms. Write whether the given statement are True or False. Justify your answer.

Answer»

Given \: statement :

\blue{ A \:binomial \: can \:have \: at \: the }

\blue{ most \:<klux>TWO</klux> \:<klux>TERMS</klux> }

\pink { ( False ) }

\underline{\orange{Binomial:}}

A BIONOMIAL is a polynomial with exactly two terms .

Examples:

  • 3x + y
  • -x+7
  • y - 28