Question
An amount of Rs. x is invested in simple interest at 5%
per annum for 4 years. If another amount of Rs. (x + 250) is also invested at the same rate for the same time, the sum of both simple interests is Rs. 750. Find x.Solution
ATQ, SI = PNR/100 SI = x * 5 * 4/100 SI = 0.2x SI = (x + 250) * 5 * 4/100 SI = 0.2x + 50 (0.2x + 0.2x + 50) = 750 0.4x = 750 - 50 0.4x = 700 x = 700 / 0.4 x = 1750
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