# A Die is Thrown Once. Find the Probability of Getting. (A) a Prime Number. (B) an Odd Number - Mathematics

Sum

A die is thrown once. Find the probability of getting.
(a) a prime number.
(b) an odd number

#### Solution

Total outcomes of throwing a dice once are 1, 2, 3, 4, 5 and 6
(1) Probability of getting a prime number
Prime numbers are 2, 3 and 5 in throwing a die once
Probability of getting a prime number = 3/6 = 1/2

(2) Probability of getting an odd number
odd numbers are those that are not divisible by 2.
So, there three odd numbers in throwing a dice once which is 1, 3 and 5.
Probability of getting an odd number = 3/6 = 1/2

Concept: Basic Ideas of Probability
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