Three coins are tossed simultaneously. What is the probability that they will fall two heads and one tail?

Options

A. `1//3`
B. `1//2`
C. `1//4`
D. `3//8`

Answer

D

Explanation

Three coins tossed simultaneously
`therefore` Total outcomes=`2^(3)=8`
Now, S={HHH,HHT,HTH,THH,"TTT","TTH",THT,"HTT"}
Favaourable cases=two heads one tail
`HHT,HTH,THH`
`therefore "Required prob"=(3)/(8)`