Rahul gives 20% of some amount to his wife and again 20% of the remaining amount to charity. Then he has only ₹12,800 left with him. What was Rahul’s initial amount?

Question

Accepted Answer

20,000. After giving 20% to his wife, Rahul has 80% left. He then gives 20% of the remaining amount to charity, so 80% of that remains, meaning final amount = 0.8 × 0.8 × original = 0.64 × original. Since 0.64x = 12,800, the original amount is 20,000.

Rahul gives 20% of some amount to his wife and again 20% of the remaining amount to charity. Then he has only ₹12,800 left with him. What was Rahul’s initial amount?

Solution

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