Question 25: A gentleman decided to treat a few children in the following manner. He gives half of his total stock of toffees and one extra to the first child, and then the half of the remaining stock along with one extra to the second and continues giving away in this fashion. His total stock exhausts after he takes care of 5 children. How many toffees were there in his stock initially?
Answer:
25. Correct Answer: 62
Let us take 5th kid has 2 toffees
Because we know that after 5th toffee his stock exhausts.
So only if the 5th kid has 2 toffees, he can give away half of it and 1 extra = 0
Then for 4th kid, (2+1) × 2 = 6 (Since we are moving in reversing order)
3rd = 14 and 2nd = 30 and 1st kid = 62
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