Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

A dice is thrown once. What is the probability that we get a number greater than 4?

### Question 2

A class has 3 boys and 2 girls. What is the probability of choosing 1 boy and 2 girls?

### Question 3

A box contains 6 cyan, 3 pink and 8 orange marbles. What is the probability of drawing a orange marble if 2 marbles are drawn out randomly?

**A**

${25/34}$.

**B**

$8/17$.

**C**

$26/136$.

**D**

$30/136$.

**Soln.**

**Ans: a**

Total number of marbles is 17. Combinations of 2 marbles that are possible = ^{17}C_{2} = ${17 × 16}/2$ = 136. If one of the two balls is orange, then both balls will be orange in ^{8}C_{2} = ${8 × (8 - 1)}/2$ = 28 ways. The number of ways in which non-orange can be drawn out are 8 × (6 + 3). So total favorable outcomes = 28 + 8 × 9 = 100, and the probability is 100/136 = ${25/34}$.

### Question 4

Three unbiased coins are tossed. What is the probability of getting at most two heads?

### Question 5

A carton consists of 100 hats out of which 72 are good, 6 have minor defects and the remaining have major defects. A hat is taken out at random. What is the probability that it has a major defect?

### More Chapters | See All...

Clocks and Calendars | Sitting Arrangements | Boats and Streams | Venn Diagrams | Partnerships | Data Sufficiency | Stocks and Shares | Problems on Trains | Hidden Figures | Ratio and Proportion | More...

This Blog Post/Article "Probability Quiz Set 004" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-04-07.