# Probability Quiz Set 018

### Question 1

What is the probability that two friends born in a non-leap years do not have the same birthdays?

A

\${364/365}\$.

B

\$21/365\$.

C

\$365/365\$.

D

\$369/365\$.

Soln.
Ans: a

The birthday of second friend has 365 outcomes. If it is not to match the birthday of the first friend, the number of favorable outcomes is 365 - 1 = 364. So probability is 364/365.

### Question 2

Karmjeet and Sham are friends. What is the probability that both will have different birthdays, ignoring a leap year?

A

\${364/365}\$.

B

\$21/365\$.

C

\$365/365\$.

D

\$369/365\$.

Soln.
Ans: a

The birthday of second friend has 365 outcomes. If it is not to match the birthday of the first friend, the number of favorable outcomes is 365 - 1 = 364. So probability is 364/365.

### Question 3

One card is drawn at random from a pack of 52 cards. What is the probability that it is NEITHER a Jack, nor a Queen or a King?

A

10/13.

B

5/26.

C

1/13.

D

3/13.

Soln.
Ans: a

There are 12 such face cards in the entire deck of 52 cards, so the required probability of getting one of them is 12/52 = 3/13. The probability of NOT getting is 1 - 3/13 = 10/13.

### Question 4

A piggy bank contains 28 nos. of 50-paise coins, 59 nos. of 1-rupee coins and 76 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?

A

\${28/163}\$.

B

\$76/163\$.

C

\$29/163\$.

D

\$33/163\$.

Soln.
Ans: a

Out of the total number of coins = 163, the chances favoring 50-paise coin are 28. So the probability is 28/163 = \${28/163}\$.

### Question 5

What is the probability of getting a multiple of 3 when a dice is tossed in the air?

A

1/3.

B

1/2.

C

1/4.

D

0.

Soln.
Ans: a

Total outcomes are 6. The number of favorable chances are two: 3, 6. So probability is 2/6 = 1/3. This Blog Post/Article "Probability Quiz Set 018" 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