Question
Simple interest earned on an amount of Rs.1500 at rate
of R% per annum after 4 years is Rs.240. Find the simple interest earned on an amount of Rs.1800 at rate of (R + 5)% per annum after 3 years.Solution
According to question, => 240 = 1500 × R% × 4 => R = 240/60 = 4 Therefore, required interest = 1800 × (4 + 5)% × 3 = Rs.486
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