Number of weeks he put pennis in bank is 23 week
Amount of pennies in bank = 161
Number weeks he put pennis in bank
Number of days in a week = 7
So,
Number of weeks he put pennis in bank = Amount of pennies in bank / Number of days in a week
Number of weeks he put pennis in bank = 161 / 7
Number of weeks he put pennis in bank = 23 week
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