Loading [MathJax]/jax/output/HTML-CSS/jax.js
Home / Aptitude Tests / Further Mathematics / The probability of J...
The probability of Jide, Atu and Obu solving a given problem...

The probability of Jide, Atu and Obu solving a given problem are 112, 16 and 18 respectively. Calculate the probability that only one solves the problem.

A.

1576

B.

55576

C.

77576

D.

167576

Correct answer is D

P(Jide)=112;P(not Jide)=1112

P(Atu)=16;P(not Atu)=56

P(Obu)=18;P(not Obu)=78

P(only one of them)=P(Jide not Atu not Obu)+P(Atu not Jide not Obu)+P(Obu not Jide not Atu)

= (112×56×78)+(16×1112×78)+(18×1112×56)

= 35576+77576+55576

= 167576