Question

A number is selected from the first 20 natural numbers. Find the probability that it would be divisible by 3 or 7?​

Answer 1

Answer:

2/5

Step-by-step explanation:

Answer 2

PROBABILITY

Given :-

First 20 natural numbers (1, 2, 3, 4, ... , 20)

To find :-

Probability that the number will be divisible by 3 or 7.

Solution :-

In order to calculate the probability, let us write down the sample space first.

S = {3,6,7,9,12,14,15,18}

P(E) = No. of possible outcomes / Total no. of outcomes.

P(Number will be divisible by 3 or 7) = 8/20

= 2/5

= 0.4

=> The probability that the number will be divisible by 3 or 7 is 2/5 or 0.4.