A piggy bank contains hundred 1/- coins fifty 2/- coins twenty 5/- coins and ten 10/- coins If it is equally likely that one of the coins will fall out when the bank is turned upside down what is the probability that the coin will not be a 10/- coin?
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Answer:
170/180=17/18
Step-by-step explanation:
total outcomes (n) = 100+50+20+10=180
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