Being pious.......
Level
pending
A man visits four temples. Each time he visits a temple, his money doubles up and he donates Rs.100 to the temple. This process repeats until he ends up with no money in the last temple. So what was the initial amount of money he had???
The answer is 93.75.
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1 solution
Working backwards is one approach of solving this problem.
4th temple: he has 100 dollars ( from 50 *2) and he gave 100 away which leaves him 0. 3rd temple: He must start with 150. After giving 100 away he is left with 50. 2nd temple: he must start with 175. after giving 100, he has 75 left. 1st temple: he must start with 93.75. Money doubles to 187.5. He gave 100 and left with 87.5.