A man goes for a visit to 4 temples with some money. When he visits the first the money doubles and donates ₹100. When he visits the second the money doubles and donates ₹100. When he visits the third the money doubles and donates ₹100. When he visits the fourth the money doubles and donates ₹100 and no money is left with him. How much money he already had?
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2
he was carrying 937.5 rupees
nanu3333:
Wrong
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3
Let the person have x rupee when he started the journey. Thus, according to the question.
2(2(2(2x-100)-100)-100)-100 = 0
=> 2(2(2(2x-100)-100)-100) = 100
=> 2(2(2x-100)-100)-100 = 50
=> 2(2(2x-100)-100) = 150
=> 2(2x-100)-100 = 75
=> 2(2x-100) = 175
=> 2x-100 = 87.5
=> 2x = 187.5
=> x = 93.75
Thus the person had 93.75 rupee when he started the journey.
2(2(2(2x-100)-100)-100)-100 = 0
=> 2(2(2(2x-100)-100)-100) = 100
=> 2(2(2x-100)-100)-100 = 50
=> 2(2(2x-100)-100) = 150
=> 2(2x-100)-100 = 75
=> 2(2x-100) = 175
=> 2x-100 = 87.5
=> 2x = 187.5
=> x = 93.75
Thus the person had 93.75 rupee when he started the journey.
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