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A man starts from his house with some money to visit four temples.

As soon as he enters the first temple, his money gets doubled. He donates Rs 100 and moves.

At temple 2, the remaining money again gets doubled and he donates Rs 100.

At temple 3, the remaining money gets doubled and he donates Rs 100.

At temple 4, the remaining money again gets doubled and he donates Rs 100. But this time, he is left with no money. So how much money did he had originally?(In Rs)

 Jun 27, 2020
 #1
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x = original amount

 

2x-100 = after 1st temple

 

(2)(2x-100) - 100   after second temple = 4x-200-100 = 4x-300

 

2(4x-300) -100 = 8x-600-100 = 8x-700 after third temple

 

2 (8x-700) - 100 = 0    after last temple

16x-1500 = 0

16x = 1500

x = 93.75

 Jun 27, 2020

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