You can exchange 3 wrappers for 1 chocolate.
If you have Rs.15, how many chocolates can you totally get??
Apparently 90% of the people who try this get it wrong.
Try before you Click here for Answer
Answer is 22 chocolates15 chocolates with Rs.15
than with 15 wrappers you get 5 more chocolates
With 3 wrappers from the 5 new chocolates you get 1 more chocolate
And with these 1 more wrapper and the remaining 2 wrappers you get 1 more chocolate
Hence you get total 15 + 5 + 1 + 1 = 22