# How much money did he get from grandma?

485 views

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, 2014

+1 vote

Ans. 62

Thinking in reverse order, in last shop he must have \$2 left with him, then proceeding backwards:
let's assume he had \$X when he went to 2nd last shop, then eqn. will be:
X - (X/2+1) = 2 ==> X = 6,
Similarily,
X - (X/2+1) = 6 ==> X = 14,
X - (X/2+1) = 14 ==> X = 30,
X - (X/2+1) = 6 ==> X = 62,

Similar Puzzles
+1 vote

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?

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?

A man distribute 0.395 of his money to his wife and 0.450 to his son.
He has still Rs. 3875 left with him.
How much did his wife get?

A brother has three sisters.
He went to their house for Rakshabandhan.
The first sister added the same amount of money he was carrying in his pocket.
The brother gave her Rs 2500.
The same thing happened over second and third sister's house.
In the end Rs 4500 left with him.
How much money did he carry from home?

+1 vote

Mark is throwing his son Stewart a surprise birthday party but he has limited funds.

He spent half of his money plus \$2.00 on the cake.

Half of what was left plus \$2.00 was spent on balloons and decorations.

Then he spent half of what he had left plus \$1.00 on candy.

Now he is out of money, how much did Mark start with?