Amit donated 20% of his income to a school and deposited 20% of the remainder in his bank. If he is having Rs 12800 now, then what is the income (in Rs) of Amit?
Let Amit's income = Rs. $$100x$$
Amount donated to school = $$\frac{20}{100}\times100x=Rs.$$ $$20x$$
Amount left = Rs. $$(100x-20x)=Rs.$$ $$80x$$
Amount deposited in bank = $$\frac{20}{100}\times80x=Rs.$$ $$16x$$
Amount left =Â Rs. $$(80x-16x)=Rs.$$ $$64x$$
According to ques, => $$64x=12800$$
=> $$x=\frac{12800}{64}=200$$
$$\therefore$$ Amit's income = $$100\times200=Rs.$$ $$20,000$$
= Ans - (B)
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