Question
A man invests 'x'% of his monthly salary of Rs. 48,000 at an interest rate of 12.5% simple interest. After 4 years, the interest earned amounts to Rs. 10,800. Determine the value of 'x'.
Solution
According to question, {(x% of 48000) × 12.5 × 4}/100 = 10800 (480x × 50)/100 = 10800 240x = 10800 x = 45 So, the value of ‘x’ = 45%
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