Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

What is the value of ^{7}C_{2}?

### Question 2

How many possible outcomes are there if a die with 5 faces is cast and then a coin with 2 sides is tossed?

### Question 3

How many 5 digit numbers ending in 0 can be formed with a given set of 7 distinct digits none of which is 0? Repetition of digits is not allowed.

### Question 4

Out of given 4 consonants and 3 vowels, how many words can be formed that contain 3 consonants and 2 vowels or 2 vowels and 3 consonants?

**A**

2160.

**B**

2170.

**C**

2150.

**D**

2180.

**Soln.**

**Ans: a**

We can make the selection in ^{3}C_{3} × ^{4}C_{2} + ^{3}C_{2} × ^{4}C_{3} ways. But the five members can themselves be arranged in 5! ways. So the number of words is 120 × (^{3}C_{3} × ^{4}C_{2} + ^{3}C_{2} × ^{4}C_{3}) = 2160.

### Question 5

How many 6 digit numbers ending in 0 can be formed with a given set of 8 distinct digits none of which is 0? Repetition of digits is not allowed.

### More Chapters | See All...

Essential Part | Data Sufficiency | Statements and Assumptions | Distance and Time | Mirror Images | Course of Action | HCF and LCM | Verification of truth | Compound Interest | Ranking Test | More...

This Blog Post/Article "Permutations and Combinations Quiz Set 013" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-04-07.