Question

3 distinct integers are selected at random from 1,2,......,20. Find out the probability that the sum is divisible by 5

Answer 1

Answer:1 /5

Step-by-step explanation:

Numbers are 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,

18,19,20

Nos. Divisible by 5 = 4

Total no of outcomes= 20

P(E)= 4/20

*simplify*

1/5.