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A sum becomes 4 times at simple interest in 10 years. What is the rate of interest?
10%
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30%
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30%
Practice and solve "A sum becomes 4 times at simple interest in 10 years. What is the rate of interest?..." for Electrical - Economics for Engineers. The correct answer is Option C: 30%. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Option **(c) **