MHT-CET

Permutation and Combination question bank (Mathematics)

Practice 83 free MHT-CET Mathematics - Permutation and Combination questions with answers and step-by-step solutions.

Start free Book a demo

All Easy Hard Medium

Q1.

Five letters are placed at random in five addressed envelopes. The probability that all the letters are not dispatched in the respective right envelopes is

(A)

$\frac{1}{120}$

(B)

$\frac{1}{5}$

(C)

$\frac{119}{120}$

(D)

$\frac{4}{5}$

Show answer & solution

Verified Answer & Solution Locked

Q2.

Three letters,to each of which corresponds an envelope,are placed in the envelopes at random. The probability that all the letters are not placed in the right envelopes is

(A)

$\frac{1}{6}$

(B)

$\frac{5}{6}$

(C)

$\frac{1}{3}$

(D)

$\frac{2}{3}$

Show answer & solution

Verified Answer & Solution Locked

Protected Questions

Unlock All 17 Questions in Permutation and Combination

Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.

Sign up free to access all 17 questions

Unlock every Permutation and Combination question, generate papers, and practice at your own pace.

Start free