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1 1 vote

A bag contains 5 five-rupee coins, 8 two-rupee coins and 7 one-rupee coins. If four coins are drawn from the bag at random, then find the odds in favour of the draw yielding the maximum possible amount.

  1. $1:968$
  2. $968:969$     
  3. $1:969$
  4. $969:968$

1 Answer

0 0 votes
Maximum amount comes when all four coins are of $Rs.5$.

Probability of getting maximum amount = $\frac{5}{20}*\frac{4}{19}*\frac{3}{18}*\frac{2}{17} = \frac{1}{969}$

Odds in favour $= \frac{1}{969-1} = 1:968$

Hence, option (A) ticked.
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