Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

64 defective pens are accidentally mixed with 40 good ones. It is not possible to just look at a pen and tell whether it is defective or not. One pen is taken out at random. What is the probability that it is a defective pen?

### Question 2

A piggy bank contains 88 nos. of 50-paise coins, 37 nos. of 1-rupee coins and 34 nos. of 2-rupee coins. The piggy bank is turned upside down, and one coin falls down. What is the probability that it is a 50-paise coin?

### Question 3

A piggy bank contains 31 nos. of 50-paise coins, 66 nos. of 1-rupee coins and 71 nos. of 2-rupee coins. The piggy bank is turned upside down, and one coin falls down. What is the probability that it is a 50-paise coin?

### Question 4

From a deck of 52 cards two cards are drawn at random. What is the probability that both will be Ace?

### Question 5

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**

$3/9$.

**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.

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This Blog Post/Article "Probability Quiz Set 009" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-10-26.