Question
The amount on a certain principal at simple interest is Rs.
6,750 after 2 years and Rs. 9,000 after 5 years. What was the initial sum?Solution
ATQ,
Interest earned in 3 years = 9,000 - 6,750 = Rs. 2,250
Interest earned in 2 years = (2,250 / 3) × 2 = Rs. 1,500
So, amount invested = 6,750 - 1,500 = Rs. 5,250
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