Chocolate Mania!
Computer Science
Level
2
Suppose a chocolate's price is 1 dollar. If you give shopkeeper 3 empty packets of chocolate, he will give you a chocolate.
Now if you have 15 dollars, how many chocolate can be brought by you(Maximum).
The answer is 22.
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1 solution
You get 15 chocolates for 15 dollars. (15) Return 15 wrappers to get 5 more (15/3=5). Return 3 wrappers from these 5 to get one more and two wrappers are with you. From the one chocolate, add its wrappers to make three empty wrappers again, to get one more chocolate (1+1=2)
Total= 15+5+1+1 =22