Question

a bag contain 25 balls numbered from 1 to 25 . one ball is drawn at a random from it. find the probability that the number of the drawn ball will be multiple of 5 or 7​

Answer 1

Answer:

probablity =7/25

Step-by-step explanation:

n(s) = 25

event (a) random ball then any ball is there

n(a) 1

p(a) 1/25

event (b)multiple of 5 or 7

n(b) 5,7,10,14,20,21,25

p(b) 7/25