100 coins fell down - Math Riddle
97.Math Riddles
100 coins fell down and got scattered inside a dark place. 90 of the coins fell with heads facing up and the rest 10 coins fell with tails up. You are asked to sort out these coins into 2 piles. However, each pile should have the same count of tails up coins. How is it possible?
Firstly, all the piles need not be of same size. I can make 2 piles, one with 90 coins and the other with 10 coins. Now just flip all the 10 coins on the pile. So the piles will have the same count of tails. Firstly, all the piles need not be of same size. I can make 2 piles, one with 90 coins and the other with 10 coins. Now just flip all the 10 coins on the pile. So the piles will have the same count of tails.
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Firstly, all the piles need not be of same size. I can make 2 piles, one with 90 coins and the other with 10 coins. Now just flip all the 10 coins on the pile. So the piles will have the same count of tails.
Explanation :
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