Send me the answer This is a story of four boys........ . .......... . 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??