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.

Is 2.134bar is rational or irrational what can you say about prime factors of its denominator

Answer»

It is the CORRECT ANSWER of your QUESTION

2.

Find six rational number between - 1 and 0

Answer» HEY Mate!

To find a RATIONAL number, we will use formula

\frac{r + s}{2}  =  \\  \frac{ - 1 + <klux>0</klux>}{2}  =  \frac{ - 1}{2}

In, -1 and -1/2

\frac{ - 1 +  \frac{ - 1}{2} }{2}  =  \\  \frac{ - 3}{2}  \times  \frac{1}{2}  =  \frac{ - 3}{4}

In, -1 and -3/4 we have

( - 1 +  \frac{ - 3}{4} ) \div 2 \\  \frac{ - 7}{4}  \times  \frac{1}{2}  =  \frac{ - 7}{8}

In, -1 and -7/8

( - 1 +  \frac{ - 7}{8} ) \div 2 \\  \frac{ - 1 5}{8}  \times  \frac{1}{2}  =  \frac{ - 15}{16}

Now, in 1/2 and 0 we have

(\frac{ - 1}{2}  + 0) \div 2 \\  \frac{ - 1}{2}  \times  \frac{1}{2}  \\  =  \frac{ - 1}{4}

In, 1/4 and 0 we have

\frac{ - 1}{4}  \div 2 \\  \frac{ - 1}{8}

So, we have -1 < -15/16 < -7/8 < -3/4 < -1/2 < - 1/4 < -1/8 < 0

Hope it helps☺!✌

Note : Question is solved according to 9TH standard.
3.

Ab and cd are common tangent to circle of unequal radus .prove that ab =cd

Answer»

Here AB and CD are extended then they are intersecting at P.

Length of two TANGENTS drawn from external point to a CIRCLE are equal.

AP = CP ----------(1)
BP = DP ----------(2)

Substracting (2) from (1) we get

AP - BP = CP - DP

∴ AB = CD

4.

An a.p consist of 50 terms of which 3rd term is 12 and last term is 106 find 29th term

Answer» HOPE this HELPS you QUICKLY
5.

The angle of elevation of the top of a rock from the top and foot of a 100 m high tower are respectively 30 ° and 45 ° . find the height of the rock

Answer» HEYA FRND ☺

PLZ SEE THE ATTACHED PICTURE ABOVE. . . . . . . . . . ☝

______☺☺☺_______

HOPE IT WILL HELP YOU. . . . . . . ✌

PLZ MARK MY ANSWER AS BRAINLIEST IF U LIKE IT. . . . . . . . . . . . . ☺⭐☺⭐☺
6.

Square root of 3481 by prime factorization

Answer»

ANSWER:

to FIND the SQUARE ROOT of 3481

3481-59

7.

a sum of money put out at compound interest amounts in 2 years to rs 578.40 and in 3 years to rs 614.55.find rate of interest.

Answer»

Clearly the difference between Rs. 578.40 and Rs.614.55 is the interest on Rs. 578.40 for 1 YEAR. 
∴ Interest on Rs. 578.40 for 1 year = Rs. 614.55 - Rs. 578.40 = Rs. 36.15 
∴ Interest on Rs.100 for 1 year = Rs. (36.15 x 100)/578.40 
= Rs. 3615/57840 x 100/1 
= Rs. 6.25 
= Rs. 61/4 


The required RATE is .61/4 percent

8.

Solve 2a-2d=02a+5d=14answer is given d=2 a=2 plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz Answer it faster than u can do my friends

Answer»

2a-2d=0
2a+5d=14

(simultaneous equation)

2a-2d=0
2a+5d=14
(-)  (-)  (-)
0   -7d=-14
      d=2

2a-2*2=0 ......(PLUGGING in d into the equation)
2a-4=0
2a=4
a=2
hope it HELPS!!!
this is simaltaneous equations.....so you have to LEARN it or search it up in the NET.



9.

verify x+(y+z)=(x+y)+z for following values of xyz. x=3/4 y=5/6 z=-7/8. please it's urgent how dose 20 and 21 came tell me

Answer» HII here is UR ANSWER hope this will HELP U
10.

Answer fast please...........

Answer» LET TAKE that THETHA = A

2cos²A+(2/1+cot²A)

= 2cos²A+(2/cosec²A)

= 2cos²A+(2×1/cosec²A)

= 2cos²A+2sin²A

= 2(cos²A+sin²A)

= 2(1)

= 2
11.

How to draw graphs easily

Answer» TAKE HELP from YOUTUBE its very convinient to LEARN
12.

A train covers 120 km in 1 hour how much distance will it cover in 45 minutes

Answer»

Hey!!!!

_________

Given,

=> 120km in 60 MINUTES

=> So X km in 45 minutes.

Thus

=> x = 120 x 45/60

=> x = 90km

Thus the TRAIN can cover 90km in 45 minutes

_____________

Hope this helps ✌️

13.

Write first four term of AP whose first term =-1.25 andthe common difference=-0.25

Answer»

Answer:

-1.25,-1.50,-1.75,-2.0,-2.25

Step-by-step explanation:

Write first FOUR term of AP whose first term =-1.25 and the common DIFFERENCE=- 0.25

Given :

a =  - 1.25 \\  \\ d =  - 0.25 \\  \\

NTH term of an A.P.

a_n = a + (n - 1)d \\  \\ a_2 = a + d \\  \\  =  - 1.25 - 0.25 \\  \\  =  - 1.50 \\  \\ a_3= a + 2d \\  \\  =  - 1.25 - 2(0.25 )\\  \\  =  - 1.75 \\  \\ a_4 = a +3 d \\  \\  =  - 1.25 - 3(0.25) \\  \\  =  - 2.00 \\  \\a_5 = a +4 d \\  \\  =  - 1.25 - 4(0.25) \\  \\  =  - 2.25

Hope it helps you.

14.

evaluate (3cos 55 deg \ 7sin 35 deg) - (4)(cos 70 deg cosec20 deg) \ (7)(tan5 deg tan 25 deg tan 45 deg tan 65 deg tan 85 deg)

Answer»

That is your answer.....



 

 

Is this SUPPOSED to be: 

3cos(55°)/[7SIN(35°)] - 4[cos(70°)csc(20°)]/[7tan(5°)TAN(25°)tan...‡ 

If so, use: 

tan(90° - x) = cot(x) <==> cot(90° - x) = tan(x) 
sin(90° - x) = cos(x) <==> cos(90° - x) = sin(x). 

So we have: 

3cos(55°)/[7sin(35°)] 
=> 3sin(90° - 55°)/[7sin(35°)] 
= 3sin(35°)/[7sin(35°)] 
= 3/7. 

4 * [cos(70°)csc(20°)]/[7 * tan(5°) * tan(25°) * tan(45°) * tan(65°) * tan(85°)] 
=> (4/7)[cos(70°)/sin(20°)]/[tan(5°) * tan(25°) * tan(45°) * tan(65°) * tan(85°)] 
= (4/7)[sin(20°)/sin(20°)]/[tan(5°) * tan(25°) * tan(45°) * tan(65°) * tan(85°)] 
= (4/7)/[tan(5°) * tan(25°) * tan(45°) * tan(65°) * tan(85°)] 
= 4/[7 * tan(5°)tan(85°) * tan(25°)tan(65°) * tan(45°)] 
= 4/[7 * tan(5°)cot(5°) * tan(25°)cot(25°) * tan(45°)] 
= 4/(7 * 1 * 1 * 1) 
= 4/7. 

Thus, the EXPRESSION equals 3/7 - 4/7 = -1/7. 

I hope this helps!


15.

The radius of a circle is increased by 1% .how much does the area of the circle increased

Answer»

Heya !!

here is ur ANSWER

================================


refer to the ATTACHMENT provided..

=================================

HOPE it helps u..!!

thnkq.

16.

If x=3is one root of quadratic equation x-2kx-6=0then find k

Answer» P(x) = x² - 2kx - 6 = 0
p(3) = 3² - 6k - 6 = 0
      ⇒ 9 - 6k - 6 = 0
      ⇒ 3 = 6k
      ⇒ K = 1/2
17.

Prove that a line through the midpoint of one side of a triangle parallel to another side bisects the third side.

Answer» HEY DEAR ... ✌

____________________________


PROOF IS IN THE PIC ...

HOPE , IT HELPS ... ✌
18.

Suppose that Anushka had notes of ` 10 and notes of ` 50 each Anushka got ` 2500/- from Anand as denominations mentioned above \ ............. equation I If Anand would have given her the amount by interchanging number of notes, Anushka would have received ` 500 less than the previous amount \ .............. equation II

Answer» ANSWER is 2500×500×50×10=2500×1000=
2500000
19.

X cube minus 3 X square + 5 x minus 3 divided by xsquar-2

Answer»

Your ANSWER in PICTURE

20.

If sin3theta = cos ( theta —6° ) where 3theta and theta — 6° are both acute angle , find the value of theta..Incorrect answer will be reported......

Answer»

Hey Mate...!!!!
Here's ur answer.......

_____________
Use ATTACHMENT.........
....._______


HENCE ,
Theta = 24°

Hope it helps....!!!!

21.

Prove that the product of any three consecutive integers are divisible by 6

Answer» SEE the IMAGE and THUMBS up.... HOPE it will HELP
22.

What is 'APPOLONIUS THEOREM'?

Answer»

In geometry, Apollonius's theorem is a theorem relating the LENGTH of a MEDIAN of a triangle to the lengths of its side. It states that "the sum of the squares of any TWO sides of any triangle EQUALS TWICE the square on half the third side, together with twice the square on the median bisecting the third side".

23.

Two adjacent side of a parallelogram are in the ratio of 3:2 the perimeter of the parallelogram is 72 cm find the length of each of its sides

Answer»
2(3x + 2x) = 72 \\ 5x = 36 \\ x = 6.1 \\
sides=18.3cm, 12.2cm
24.

Convert 15.712 bar on 12 into p/q form

Answer»

Hi ,

Let x = 15.7121212.....----( 1 )

MULTIPLY equation ( 1 ) with 10, we get

10x = 157.121212....-----( 2 )


Multiply equation ( 2 ) with 100, we get

1000x = 15712.121212...----( 3 )

SUBTRACT equation ( 2 ) ,from ( 3 ),

990x = 15555

x = 15555/990

x = 3111/198

x = 1037/66

Therefore ,

x = 15.71212... = 1037/66 [ p/q form ]

I hope this HELPS you.

: )

25.

Sunanda secured 40% marks in hindi, 50% in english,60% in maths, and 70% in science.what were his total marks if the maximum marks obtained in each of these 4 subjects was 60?

Answer» 132 will be the ANSWER BUDDY
26.

For what value of K,the equation k,represent parallel lines

Answer»

The answer is GIVEN below :

RULE :

The two lines

a1x + b1y + c1 = 0
a2x + B2Y + c2 = 0

will REPRESENT two parallel lines, if

a1/a2 = b1/b2

SOLUTION :

The given lines are

kx - 3y + 6 = 0
4x - 6Y + 15 = 0

These two lines be parallel to each other, if

K/4 = (-3)/(-6)

⇒ k/4 = 1/2

⇒ k = 4/2

⇒ k = 2

Thus, when k = 2, the two given lines be parallel to each other.

Thank you for your question.

27.

Two dices are thrown simultaneously find the probability of getting a multiple of 2 on 1 days and multiple of 3 on the other

Answer» P(E)=6/36
= 1/6.
hope it HELPS
28.

find the value of k for which the following system of equations has infinitely many solutions ; (K - 1)X+3Y is= 7; (k + 1)X + 6Y=( 5 k -1)

Answer»

In the two pair of equations,
a1 = k-1. b1 = 3. c1 = 7
a2 = k+1. B2 = 6. c2 = 5k-1

As the pair of equations should have INFINITELY many solutions. the two LINES MUST be coincident...

Then, a1/a2 = b1/b2 = c1/c2

= k-1/k+1 = 3/6

= 2(k-1) = k+1

= 2k-2 = k+1

= k = 3...

There your have your solution..

29.

State the conditions under which binomial distribution tends to poisson distribution

Answer»

A BINOMIAL DISTRIBUTION tends to be a POISSON distribution under the following conditions:

- Number of TRIALS is large, i.e., N tends to approach infinity
- Probability of each trial is very small, i.e., p tends to approach zero

30.

Two numbers differed by 3 and their product is 54. find the numbers.

Answer»

Given:

Two NUMBERS differed by 3 and their product is 54.

To find out:

Find the numbers?

SOLUTION:

Let the two numbers be x and y .

★According to the FIRST CONDITION,

Difference if the two number = 3

➠ x - y = 3

➠ y = x - 3 ...............( i )

★ According to the second condition,

➠ xy = 54 ................( ii )

Substituting y = x - 3 from ( i ) and ( ii ), we get

x (x-3) = 54

➠ x² - 3x = 54

➠ x² - 3x - 54 = 0

➠ x² - 9x + 6x - 54 = 0

➠ x ( x - 9 ) + 6 ( x - 9 ) = 0

➠ ( x - 9 ) ( x + 6 ) = 0

➠ x = 9 and x = -6

On putting x = 9 in equation ( i ) , we have

y = 9 - 3 = 6

On putting x = -6 in equation ( i ) , we get

y = -6 - 3 = -9

Hence, the numbers are 9 and 6 or -9 and-6 .

31.

Subtract the sum of -1250 and 1 138 from the sum of 1136 and minus 1272

Answer»

Sum1=1138-1250=-112
sum2=1136-1272=-136
now sum2-sum1
=-136-(-112)
=-136+112
=-24

32.

Sinx.sin(60-x).sin(60+x)=1/4 (sin3x)

Answer»

Sinx.sin(60-x).sin(60+x)

= sinx [ cos( 60 - x - 60 - x) - cos ( 60 - x + 60+ x ) /2

= sinx [ cos ( -2X ) - cos ( 120 ) ] /2

= sinx [ cos2x + 1/2 ] /2

= sinx [ ( 1 - 2sin²x) + 1/2 ] /2

= sinx [ 3/2 - 2sin²x ] / 2

= 3 sinx/4 - 2 sin³x /2

= 3SINX - 4sin³x / 4

= 1/4 ( sin3x )

Hope HELPED!

FORMULAE : sin3x = 3sinx - 4sin³x

2sinA* sinB = cos (A - B) - cos ( A + B)

33.

A rombus,Whose side is 5.5 cm, has one angle equal to 60°. What will be the length the smaller diagonal?

Answer»

Hello Friend__!!
Answer :

Given side of RHOMBUS  =  5.5 cm and one angle is 60° , As :

Refer to PIC above...

∠ BAD  = 60° , So BD is smaller diagonal 

And


∠ ABC  = 120°     , We know adjacent angle of rhombus are supplementary  .

And Diagonal of rhombus bisect it's angles , So

Diagonal BD bisect ∠ ABC  and ∠ ADC  , So

∠ ABD  =  ∠ ADB = 60° 

So,

In triangle  ABD  , all internal angles are at 60°   , So  triangle ABD is a equilateral triangle ,  So

AB  =  BD  =  DA  =  5.5 cm 

Then  ,

We can say LENGTH of smaller diagonal  =  5.5 cm                                    (  Ans )
Hope u FYND it helpful..
Mark brainlliest bro!!

34.

sum of the digit of a two digit number is 11 the given number is less than the number obtained by interchanging the digits by 9 find the number

Answer»

Let the tens place digit be a

And Unit place digit be b

According to first condition,

a + b = 11 --------(1)

According to second condition

( 10a + b) - (10B +a) = 9

=> 10a + b - 10b - a = 9

=> 9a - 9b = 9

=> a - b = 1 ------(2)

On ADDING equation 1 and 2, we get

2a = 12

=> a = 6

Now,

On Substituting the value a in equation 1, we get

6 + b = 11

=> b = 5

Required number = 10 × 6 + 5

= 65

35.

X^3 - x^2 + ax + x - a - 1

Answer» HI...☺

Here is your ANSWER...✌

Q. FACTORISE :

X^3 - x^2 + AX + x - a - 1

Sol.

{x}^{3}  -  {x}^{2}  + ax + x - a - 1 \\  \\  = ( {x}^{3}  -  {x}^{2} ) + (ax  -  a) +  x - 1 \\  \\  =  {x}^{2} ( x - 1) + a(x - 1) + 1(x - 1) \\  \\  = (x  - 1)( {x}^{2}  + a + 1)
36.

Find the HCF of 170 and 238 by prime factorization

Answer»

It can be EASILY find as follows
170= 2×5×17 (prime FACTORS)

238=2×7×17

Now fond common factors AMONG them ok,

2 and 17 Now multiply them
2×17 =34 .......(Ans)

Hope it helps you frend...

37.

Express into standard form -48/60

Answer»

It will be -4/5
HOPE this HELPS you

38.

apply division algorithm to find quotient qx and remainder rx on dividing fx by gx where fx = x^3-6x^2+11x-6 and gx =x^2+x+1

Answer»

On  dividing f(x) by G(x)
                ______x-7______
 x^2+x+1 ) x^3-6x^2+11x-6
                  x^3+x^2+x
                 (-)   (-)    (-)
                ___________
                      -7X^2+10x-6
                      -7x^2-  7x- 7
                      +      +     +
                      __________
                               17x +1
                          ________
using DIVISION algorithm
 
f(x)  = Q(x) g(x) + r(x)
=> x^3-6x^2+11x-6  =  (x-7) (x^2+x+1)  + (17x+1)
                                 x^3-6x^2+11x-6

hope it helps you:)!!!






39.

How does light travels faster than sound

Answer»

Because LIGHT WAVES have more VACUUM then SOUND waves ...

40.

If the roots of the equation ax²+bx+c=0 are in the ratio m:n, prove that mnb²=ac(m+n)²

Answer»

Here is UR answer

plz BRAINLIEST

41.

Find the zeros of the quadratic polynomial 2x^2-50

Answer»

Hey!!!!

Let US SOLVE

=> 2x² - 50 = 0

=> 2x² = 50

=> x² = 25

=> x = √25

Thus x = 5 or x = -5

Hope this HELPS ✌️

42.

How to divide polynomial in long division method

Answer»

Here is ur ANSWER by GIVING an EXAMPLE. here is SIMPLE WAY to solve

43.

P(x)=x3-6x2+9x+3,g(x)=x-1

Answer» P(X)=x^3-6x^2+9x+3
g(x)=x-1
x-1=0
x=1
p(1)=(1)^3-6(1)^2+9×1+3
=1-6+9+3
=-5+9+3
=4+3
=7
hope it helps you
please mark as BRAINLIST
44.

find the area of a wall to wall carpet in a room of length 12 m and breadth 9 m.what will be the cost of carpet, if a sqm costs Rs. 50 ?

Answer» FIRST 12*9=108*50=5400this MAY be the ANSWER
45.

Find the zero of 6x^2-7x-3

Answer»

Here is your ANSWER my FRIEND i HOPE this will HELP you

46.

The ratio of the ages of two sisters is 2:3. Six years later, the ratio of their ages will be 3:4. Find their present ages

Answer»

The PRESENT age of ONE sister is 12YEARS and the present age of the SECOND sister is 18 years.

47.

[2√30\√6] - [ 3√140/√28] + [√55/√99]

Answer» HI ,

[2√30/√6] -[3√140/√28 ] +[√55/√99]

= [ 2(√5×√6)/√6] - [ 3(√28×√5)/√28 ]

+ [ ( √11 × √5 )/( √11 × √9 ) ]

= 2√5 - 3√5 + √5/√9

= - √5 + √5/3

= ( - 3√5 + √5 )/3

= - 2√5/3

I HOPE this HELPS you.

: )
48.

a taxi covers 1236 km distance in 12 hour how much distance it will cover with the same speed in 10 and half hours

Answer»

Distance covered in 12 hrs = 1236 km

Speed = distance / TIME

speed = 1236/12 = 103 km/hr

Distance = speed × time
distance = 103 × 10.5
distance = 1081.5 km

Hope it HELPS...!!!
THANKS...!!!!

49.

A certain language, popular is coded as QPQVMBS, then which word would be coded as GBNPVT.

Answer»

The ANSWER is FAMOUS

50.

X-y=7 and x cube -y cube =133

Answer» OKK but what's the QUESTION