![]() It's a surprise: the total number of heads up coins has increased from 18 to 19!įinding no better alternative, you decide to continue same way.īut it cannot be done indefinitely. And in the second pile, the number increases by 1 to 1. Number of heads up coins in the first pile remains unchanged to 18. After flipping, it is heads up in the second pile. Scenario 2: Originally chosen coin was tails up. The number of heads up coins in the second pile remains 0. The number of heads up coins in the starting pile reduces by 1 to 17. Scenario 1: Originally the chosen coin was heads up and now in the second pile it is tails up after flipping. Now your reasoning brain becomes active and you list out the further possibilities opened up by the simple action. This is the highly effective What If Analysis. What if a random coin is chosen, flipped and added as the first coin in the second pile!
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