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

Solution :

The probability that Mr A selected the lossing horse

= $$4\over 5$$ $$\times$$ $$3\over 4$$ = $$3\over 5$$

The probability that Mr A selected the winning horse

= 1 – $$3\over 5$$ = $$2\over 5$$

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