Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

A box contains 4 maroon, 7 sky blue and 3 dark green balls. What is the probability of drawing a ball that is neither sky blue nor maroon?

### Question 2

A box contains 8 maroon, 5 navy and 3 pink marbles. What is the probability of drawing a marble that is not pink if 2 marbles are drawn out randomly?

**A**

${13/20}$.

**B**

$3/16$.

**C**

$14/120$.

**D**

$18/120$.

**Soln.**

**Ans: a**

Total number of marbles is 16. Combinations of 2 marbles that are possible = ^{16}C_{2} = ${16 × 15}/2$ = 120. Chances of drawing a non-pink ball are ^{13}C_{2} = $(13 × (13 - 1))/2$ = 78. So probability = 78/120 = ${13/20}$.

### Question 3

From a deck of 52 cards two cards are drawn at random. What is the probability that both one is a hearts, and the other a clubs?

**A**

${13/102}$.

**B**

$7/9$.

**C**

$14/102$.

**D**

$18/102$.

**Soln.**

**Ans: a**

Number of ways of drawing 2 cards out of 52 = ^{52}C_{2} = $(52 × 51)/2$ = 1326. There are 13 hearts and 13 clubs in the deck. So 2 such cards can be drawn in 13 × 13 = 169 ways. The probability = 169/1326 = 13/102.

### Question 4

A box contains 7 navy, 2 khaki and 3 orange balls. What is the probability of drawing a ball that is neither khaki nor navy?

### Question 5

Two players, A and B, play a game. It is known that probability of A's victory is 0.48. What is the probability of B's victory?

### More Chapters | See All...

Basic Simplification | Stocks and Shares | Percentages | Alligations and Mixtures | Cubes and Dice | Problems on Ages | Averages | Profit and Loss | Time and Work | Venn Diagrams | More...

This Blog Post/Article "Probability Quiz Set 020" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-05-17.