Question
Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest . If she paid Rs. 432 as interest at he end of the loan period ,what was the rate of interest ?
Answer: Option B
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Let rate = R% and time = R years. Then
`((1200 xx R xx R)/(100)) = 432 hArr 12R^2 = 432 hArr R^2 = 36 hArr R = 6.`
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