Q. Five horses are in a race. Mr. $A$ selects two of the horses at random and bets on them. The probability that Mr. $A$ selected the winning horse, is
A) $\frac{4}{5}$
B) $\frac{3}{5}$
C) $\frac{1}{5}$
D) $\frac{2}{5}$
Explanation
(d)
The probability that Mr. $A$ selected the loosing horse
$= \frac{4}{5} \times \frac{3}{4} = \frac{3}{5}$
The probability that Mr. $A$ selected the winning horse
$= 1 - \frac{3}{5} = \frac{2}{5}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.