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Unattempted: |

### Question 1

A bag contains lemon flavored candies only. Malini takes out a candy without looking into the bag. What is the probability that she takes out an orange flavored candy?

### Question 2

What is the probability of getting a sum of 7 from two throws of a dice?

### Question 3

A class has 6 boys and 5 girls. What is the probability of choosing 1 boy and 2 girls?

**A**

${4/11}$.

**B**

$7/11$.

**C**

$5/11$.

**D**

$9/11$.

**Soln.**

**Ans: a**

Three students have to be picked. Total number of ways = ^{11}C_{3} = ${11 × 10 × 9}/{3 × 2 × 1} = $165. Number of ways of picking 1 boy and 2 girls = ^{6}C_{1} × ^{5}C_{2} = 60. So probability = $60/165$ = ${4/11}$.

### Question 4

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

### Question 5

A box contains 2 navy, 4 red and 6 sky blue marbles. What is the probability of drawing a marble that is not sky blue if 2 marbles are drawn out randomly?

**A**

${5/22}$.

**B**

$6/12$.

**C**

$6/66$.

**D**

$10/66$.

**Soln.**

**Ans: a**

Total number of marbles is 12. Combinations of 2 marbles that are possible = ^{12}C_{2} = ${12 × 11}/2$ = 66. Chances of drawing a non-sky blue ball are ^{6}C_{2} = $(6 × (6 - 1))/2$ = 15. So probability = 15/66 = ${5/22}$.

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Alligations and Mixtures | Surds and Indices | Paper Folding | Direction Sense Test | Sitting Arrangements | Hidden Figures | Data Sufficiency | Clocks and Calendars | Percentages | Ranking Test | More...

This Blog Post/Article "Probability Quiz Set 015" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2020-02-07. Published on: 2016-05-08