Q. 635.0( 3 Votes )
A piggy bank contains hundred 50 paise coins, fifty ` 1 coins, twenty ` 2 coins and ten ` 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, find the probability that the coin which fell
(i) will be a 50 paise win
(ii) will be of value more than ` 1
(iii) will be of value less than ` 5
(iv) will be a ` 1 or ` 2 coin
Total number of possible outcomes, n(S) = 100 + 50 + 20 + 10 = 180
(i) Number of favorable outcomes, n(E) = 100
(ii) Number of favorable outcomes, n(E) = 20 + 10 = 30
(iii) Number of favorable outcomes, n(E) = 100 + 50 + 20 = 170
(iv) Number of favorable outcomes, n(E) = 50 + 20 = 70
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