How many candies?

A shop is selling candies at $1 for each candy, plus it is giving a free candy for 3 empty candy wrappers. You have $15. How many candies will you get for $15?

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Answer:
22.


Eat 15 candies and return the 15 wrappers

u get 5 more candies.

eat 3 more candies and return 3 more wrappers from the 5 new candies and get 1 more candy

Now you have total 2+1 candies left....

eat them and return their wrappers

and get one more candy......

so 22 candies in TOTAL.