A detergent powder company is having a contest.

 Ques. A detergent powder company is having a contest. Each pack of 1kg contains one of the letters B, A, M and O. In every 20 packs, there are four Bs, five As, ten Ms and one O. What is the probability that a pack will have a B?

A] 1/4 

B] 1/2 

C] 1/5 

D] 1/20

Ans - C

Solution- 

20 packs contain 4 B’s

The probability that 1 pack will have a B is 4/20 or 1/5