Question

An integer is chosen from 1 to 100. Find the probability that is multiple of 5 or perfect
square.

Answer 1

Step-by-step explanation:

Total number of outcomes =100

Number of Multiples of 5 =20

Number of perfect squares = 1,4,9,16,25,36,49,64,81,100=10

But 25 is also a multiple of 25 and also a perfect square number.

So probability of getting a multiple of 5 or a perfect square number = 20+10-1/100=29/100