Question

A man leaves for the temple with a sum of money. He reaches temple 1, where his money doubles and he donates Rs. 100. He reaches temple 2, where his money doubles and he donates Rs. 100. He reaches temple 3, where his money doubles and he donates Rs. 100 He reaches temple 4, where his money doubles and he donates Rs. 100 and now he is left with nothing. What is the sum of money that he started off with?

Answer 1

100
the answer is 100