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Chinku, Dinku, Pinku & Tinku.
One day all of them decide to save their money in a bank......they select a bank called " Lena Bank " The bank's specialty is: In every month the money gets doubled. In 2nd month, Chinku withdraws 100-Rs from bank........ ... In 3rd month, Dinku withdraws 100-Rs from bank........ ...... In 4th month, Pinku withdraws 100-Rs from bank........ ....& In 5th month, Tinku withdraws 100-Rs from bank & their balance in the bank becomes zero........ ......... ... How much amount had the boys put in the bank? |
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Junior Member
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They deposited RS 93.75 in the first month.
month 1 = 93.75 month 2 = 187.50 - 100(chinku withdrew his 100) = 87.50 month 3 = 175 - 100(dinku withdrew his 100) = 75 month 4 = 150 - 100(pinku withdrew his 100) = 50 month 5 = 100 - 100(tinku withdrew his 100) = 0 |
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