Question

A bag contains 5 discs numbered from 1 to 5 . two discs are drawn what is the probability that aum is less than 8

Answer 1

Answer:

16/20 = 4/5

Step-by-step explanation:

the outcome can only be a pair and also it can't be doubles...

so the outcome would be:

(1,2) (2,1) (3,1) (4,1) (5,1)

(1,3) (2,3) (3,2) (4,2) (5,2)

(1,4) (2,4) (3,4) (4,3) (5,3)

(1,5) (2,5) (3,5) (4,5) (5,4)

hence it is certainly clear that the total outcomes is 20...

out of which only 16 will add it less than 8..

hence the answer.