A man goes into a store one day, and says to the cashier, “If you can match and give me what I have in my pocket, I will spend $10 in your store.”
The cashier matched and gave the man the money, and the man spent $10. The man then went to another store, said the same thing, and did the same. He then went to a third store, said the same thing, and did the same. After leaving the third store, he had no money left. How much money did he start out with?
Answer
He started out with $8.75.
8.75+8.75=17.50-10.00=$7.50
7.50+7.50=15.00-10.00=$5.00
5.00+5.00=10.00-10.00=$0