Question

The probability of getting head and tail alternately in three throws of a coin (or a throw of three coins), is

(A) 1/8 

(B) 1/4 

(C) 1/3 

(D) 3/8

Answer 1

Answer is (B) 1/4

Total probable ways = 8

Favourable number of ways = [HTH, THT]

Hence, required probability = 2/8 = 1/4.