Question
The simple interest on a sum of Rs. (6x + 100) for 4
years at 10% per annum is Rs. 1,200. Find the value of x.Solution
Let the principal be Rs. (6x + 100). Simple interest = P × R × T / 100 = (6x + 100) × 10 × 4 / 100 = 1,200 (6x + 100) × 0.4 = 1,200 6x + 100 = 3,000 6x = 2,900 x = 1450/3
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