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| 1. |
A piggy bank contaons |
| Answer» Number 50 p coins in the piggy bank = 100Number of Re. 1 coins in the piggy bank = 50Number of Rs. 2 coins in the piggy bank = 20Number of Rs. 5 coins in the piggy bank = 10∴ Total number of coins in the piggy bank = 100 + 50 + 20 -10 = 180∴ Number of all possible outcomes = 180\tNumber of favourable outcomes to the event that the coin will be a 50 p coin = 100\t∴ Probability that the coin will be a 50 p coin\xa0{tex}\\frac{Number\\;of\\;favourable\\;outcomes\\;to\\;the\\;event\\;that\\;the\\;coin\\;will\\;be\\;a\\;50\\;p\\;coin}{\\;Number\\;of\\;all\\;possible\\;outcomes}{/tex}{tex}\\frac{100}{180}=\\frac59{/tex}\tNumber of favourable outcomes to the event that the coin will not be a Rs. 5 coin\t= 100 + 50 + 20 = 170\t∴ Probability that the coin will not be Rs. 5 coin\t{tex}\\frac{Total \\ no.\\;of\\;favourable\\;outcomes}{Total\\;number\\;of\\;possible\\;outcomes}{/tex}{tex}\\frac{170}{180}=\\frac{17}{18}{/tex} | |