Five horses are in a race. Mr. A selects two of the horses at random and bets on them.
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) 3/5
(b) 1/5
(c) 2/5
(d) 4/5.
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(c) : No. of horses = 5
∴ Probability that A can’t win the race
= 4/5 x 3/4
Probability that ‘A’ must win the race
= 1 - P(A bar) P(B bar)
= 1 - 12/20
= 2/5.
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