Question
Ravi invested Rs. 2500 at (R + 4)% p.a. simple interest and
earned an interest of Rs. 1500 at the end of 3 years. Find the interest earned if the same amount is invested at R% p.a. simple interest for 2 years.Solution
ATQ,
2500 × (R + 4)/100 × 3 = 1500
Or, 75R + 300 = 1500
Or, 75R = 1200
Or, R = 16
Desired Interest = 2500 × 16/100 × 2 = Rs. 800
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