Can you solve three of the problems below?
Others are for extra credit.
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Solution to the Problem:
Here is Ritwik Chaudhuri's excellent explanation:
Correctly solved by:
| 1. Ritwik Chaudhuri ** (solved all 9) | Santiniketan, West Bengal, India |
| 2. Veena Mg ** (solved 1 - 7) | Bangalore, Karnataka, India |
| 3 Ivy Joseph ** (Solved all 9) | Pune, Maharashtra, India |
** Extra Credit