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### Question 1

A piggy bank contains 73 nos. of 50-paise coins, 37 nos. of 1-rupee coins and 81 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 2

A box contains 70 red balls and an unknown number of blue balls. If the probability of drawing a blue ball is 5 times the probability of drawing a red ball, then how many blue balls are there in the box?

### Question 3

What is the probability of getting a sum less than 12 from two throws of a dice?

### Question 4

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

**A**

${13/102}$.

**B**

$9/14$.

**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 clubs and 13 diamonds in the deck. So 2 such cards can be drawn in 13 × 13 = 169 ways. The probability = 169/1326 = 13/102.

### Question 5

If P(E) = 0.56, then what is the probability of non-occurrence of E?

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This Blog Post/Article "Probability Quiz Set 017" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2019-08-18.