# How much money did he get from grandma?

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Grandma sent Johnny some money for his birthday. Johnny spent all of it in five stores. In each store, he spent \$1.00 more than half of what he had when he came in.
How much money did he get from grandma?

posted Dec 15, 2015

Can be done backwards way..

Amount he had when he came into 5th store = \$2 (since 1 dollar more than half is all he has)
Amount he had when he came into 4th store = (2+1)2 = 6 (as he spent \$1 more than half in 4th store leaving \$1 less than half for 5th store)

Amount he had when he came into 3th store = (6+1)2 = 14

Amount he had when he came into 2th store = (14+1)2 = 30

Amount he had when he came into 1th store = (30+1)2 = 62

Money he got from grandma = `\$ 62`

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Grandma sent Johnny some money for his birthday. Johnny spent all of it in five stores. In each store, he spent \$1.00 more than half of what he had when he came in. How much money did he get from grandma?

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How much money did he get from grandma?

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