Here’s a fun question often asked in interviews at companies like Zoho and Amazon. Can you solve it?
The Puzzle
You have 15 rupees, and each chocolate costs 1 rupee. For every 3 wrappers, you can exchange them for 1 more chocolate. The challenge? Determine the maximum number of chocolates you can eat.
Please take a moment to think about it… Ready? Let’s break it down step by step.
Step-by-Step Solution
Step 1: Buy Chocolates with 15 Rupees
With 15 rupees, you can buy 15 chocolates. Simple enough? Now you have 15 wrappers from the chocolates you just ate.
Step 2: Trade Wrappers for Extra Chocolates
Here’s the fun part: For every 3 wrappers, you get 1 extra chocolate.
- From 15 wrappers, you can trade them for 5 more chocolates.
- Now, you eat those 5 chocolates and collect their wrappers. This gives you 5 more wrappers.
Step 3: Trade Again
With 5 wrappers, you can trade 3 wrappers for 1 more chocolate.
- After eating that chocolate, you now have 3 wrappers left.
Step 4: One Last Trade
Finally, you use the last 3 wrappers to get 1 more chocolate. And that’s it — no more wrappers left to trade.
The Final Answer
You can eat a total of 22 chocolates with just 15 rupees! Pretty sweet, right?
Did You Crack It?
This puzzle isn’t just about quick calculations; it tests your ability to think iteratively and maximize resources. Did you figure it out before reading the solution? Let me know your thoughts in the comments below!
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