Question

A number is selected from the first 25 natural numbers, what is the probability that it is divisible by 4 or 7.

Answer 1

Answer:

Total outcomes = 25

Numbers divisible by 4 or 7 = 4,7,8,12,14,16,20,21,24

No. of outcomes = 9

Probability = No. of outcomes/ Total outcomes = 9/25

Hope it helps..!!

Answer 2

Answer:

n(s)=25

n(E)=4,7,8,12,14,16,48,20,21,24=10

P(E)=n(E)/n(s)

P(E)=10/25