Question

From the first 50 natural numbers, find the probability of randomly selected number is a multiple of 3.

Answer 1

P ( multiple of 3) = 16/50=8/25

Answer 2

Given,

First 50 natural numbers.

To find,

Probability of selecting a number from first 50 natural numbers which is a multiple of 3.

Solution,

Natural numbers are used for counting objects. They are positive and begins with 1 until infinite.

So, let's write down the multiples of 3 in the range of 1-50.

3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48

There are 16 multiples of 3 in his range.

Probability(Event) = Favorable Outcomes/Total Outcomes

Favorable outcomes(Multiples of 3) = 16

Total outcomes = 50

Probability(Selecting a multiple of 3) = $\frac{16}{50}$

Probability = $\frac{8}{25}$

Hence, probability of randomly selecting a number which is a multiple of 3 = $\frac{8}{25}$ .