Question

Out of 50 boys , 21 like tea only, 19 like coffee only and the remaining like both ; if a student is chosen at random , what is the probability that he likes tea only, dislikes tea , both

Answer 1

the probability of getting a student who like tea=21/50

the probability of getting a student who dislike tea=19/50

the probability of getting a student who like both = 10/50

Answer 2

The probability of  a student who like tea=21/50

The probability of  a student who dislike tea=19/50

The probability of  a student who like both = 10/50 = 1/5