Binomial Theorem Questions for CAT

Preview 20 questions below, then sign up free to solve them in practice mode with worked solutions, and to reach all 78.

Verified questions78
Worked solutions in practice mode1 from CAT papers
52 easy25 medium1 hard

20 free Binomial Theorem questions

1EasyTITA

In the expansion of (1+4x)10(1+4x)^{10}, which term is the greatest when x=1x=1?

2EasyTITA

In the expansion of (1+2x)8(1+2x)^{8}, which term is the greatest when x=1x=1?

3EasyTITA

Find the coefficient of x6x^6 in (1+x)12(1+x)^{12}.

4EasyMCQ

Using Binomial Theorem, approximate (1.01)2(1.01)^{2} up to two decimals:

  1. A

    1.01

  2. B

    1.02

  3. C

    1.03

  4. D

    1.04

5EasyMCQ

If Tr+1T_{r+1} and TrT_r are consecutive terms of (1+x)9(1+x)^9, find Tr+1Tr\frac{T_{r+1}}{T_r}.

  1. A

    7rr+1x\frac{7-r}{r+1}x

  2. B

    5rr+1x\frac{5-r}{r+1}x

  3. C

    9rr+1x\frac{9-r}{r+1}x

  4. D

    11rr+1x\frac{11-r}{r+1}x

6EasyMCQ

Expand up to 3 terms: (1x)2(1 - x)^{-2}. Which is correct?

  1. A

    1+2x+3x21 + 2x + 3x^2

  2. B

    12x+3x21 - 2x + 3x^2

  3. C

    1+2x3x21 + 2x - 3x^2

  4. D

    12x3x21 - 2x - 3x^2

7MediumMCQ

Approximate (1.005)6(1.005)^6 to three decimal places:

  1. A

    1.030

  2. B

    1.031

  3. C

    1.032

  4. D

    1.033

8MediumMCQ

If the ratio of the 5th term to the 4th term in the expansion of (1+x)^12 is 3:2, then the value of x is:

  1. A

    1/2

  2. B

    2/3

  3. C

    3/2

  4. D

    2

9MediumMCQ

Let nC3:nC2=10:5 nC_3 : nC_2 = 10 : 5. Then the value of n is:

  1. A

    5

  2. B

    6

  3. C

    7

  4. D

    8

10MediumMCQ

The sum of coefficients of odd powers of x in (1+x)12(1+x)^{12} is:

  1. A

    2048

  2. B

    1024

  3. C

    0

  4. D

    4096

11MediumMCQ

What is the remainder when $(13100+17100)$\$(13^{100} + 17^{100})\$ is divided by 25?

  1. A

    0

  2. B

    2

  3. C

    4

  4. D

    11

12MediumMCQ

If the coefficients of x2x^2 and x3x^3 in (1+x)n(1+x)^n are in ratio 5:6, then n equals:

  1. A

    8.6

  2. B

    9.3

  3. C

    5.6

  4. D

    12.1

13MediumMCQ

If (1+x)8(1+x)^8 expansion has middle term coefficient equal to 70, find that term’s index:

  1. A

    4

  2. B

    5

  3. C

    6

  4. D

    7

14MediumMCQ

If the ratio of successive terms T5T_5 and T4T_4 in (1+x)n(1+x)^n is 2:1 when x=1, then n is:

  1. A

    6

  2. B

    7

  3. C

    11

  4. D

    9

15MediumMCQ

If nC3:nC2=9:4nC_3:nC_2=9:4, then n is:

  1. A

    16/716/7

  2. B

    17/417/4

  3. C

    38/838/8

  4. D

    35/435/4

16MediumMCQ

In the expansion of ((1+x)12)((1 + x)^{12}), the ratio of the coefficients of x6x^6 to x5x^5 is:

  1. A

    7/67/6

  2. B

    11/611/6

  3. C

    6/76/7

  4. D

    6/116/11

17MediumMCQ

Approximate (0.98)4(0.98)^4 using binomial theorem, up to two decimals:

  1. A

    0.92

  2. B

    0.94

  3. C

    0.96

  4. D

    0.98

18MediumMCQ

The remainder when (1750+85017^50 + 8^50) is divided by 25 is:

  1. A

    0

  2. B

    15

  3. C

    23

  4. D

    18

19MediumMCQ

Approximate (1.02)10(1.02)^{10} using Binomial theorem up to two decimals:

  1. A

    1.20

  2. B

    1.21

  3. C

    1.22

  4. D

    1.23

20MediumMCQ

What is the remainder when a number NN, with a digit sum of 23 that gives a remainder of 7 when divided by 11, is divided by 33?

  1. A

    77

  2. B

    2929

  3. C

    1616

  4. D

    1313

58 more waiting

Solve all 78 Binomial Theorem questions

You have previewed 20 above. Sign up free to solve those in practice mode with worked solutions, then keep going through the rest.

  • Full worked solutions
  • Per-question timer
  • Accuracy by topic
  • Progress tracking
See the 1 CAT PYQs on Binomial TheoremActual papers, 2017–2025, organised by year and slot

More Quant practice