Question

A boy has 15 rs with him 1 chocolate is for 1 rupee after buying the shopkeeper tells him that if he returns 3 chocolate rappers then shopkeeper will give the boy 1 more chocolate . In the last how many chocolates did the boy eat?

Answer 1

1. he will get 15 chocolates and 15 wrappers
2. he will give the wrappers and get 5 chocolates
3. he will give 3 wrappers to get one chocolate and keep 2 wrappers with him
4. he has a total of 3 wrappers now so he gets one mare chocolate

So, he ate 22 chocolates

Answer 2

he ate 22 chocolates as:
1)he was already having 15 rs, he ate 15 chocolates rs 1 for each and now have 15 wrappers
2)the shopkeeper gave 1 chocolate on 3 wrappers
3)now as the boy was having 15 wrappers he could get
$15 \div 3 = 5 \: more \: chocolates$
4)then he again returned 3 wrappers and bought 1 more chocolate
5)now he had 1 more wrapper and he was already left with 2 last time
6)now he again had 3 wrappers and bought 1 more chocolate