Question
Simple interest earned on an amount of Rs.1200 at rate of R% per annum after 2 years is Rs.216. Find the simple interest earned on an amount of Rs.1400 at rate of (R + 4)% per annum after 3 years.
Solution
According to question, => 216 = 1200 × R% × 2 => R = 216/24 = 9 Therefore, required interest = 1400 × (9 + 4)% × 3 = Rs.546
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