Question

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

• A. $\frac { 1 } { 8 }$
• B. $\frac { 1 } { 4 }$
• C. $\frac { 1 } { 3 }$
• D. $\frac { 3 } { 8 }$

Answer 1

Answer: (B)

$\frac { 1 } { 4 }$

Answer 2

Total probable ways $= 8$

Favourable number of ways $= [ H T H , T H T ]$

Hence required probability