Question

if a number from 1-15 is chosen at random, find the probability of choosing
1 a prime number
2 an even number
3 a number divisible by 5
4 a number divisible by 2 and 5 both

Answer 1

HEY MATE !! HERE IS UR ANSWER !!

Total no. of outcomes = 15

1.Prime no.s = 6 (2,3,5,7,11,13)

Probability = $6/15$

2.Even no.s = 7 (2,4,6,8,10,12,14)

Probability = $7/15$

3.No.s divisible by 5 = 3 (5,10,15)

Probability = 3/15 = $1/5$

4.No.s divisible by 2 & 5 = 1 (10)

Probability = $1/15$

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