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5. | Farhan took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If he paid Rs. 432 as interest at the end of the loan period, what was the rate of interest? | |
A. | 3.6 | |
B. | 6 | |
C. | 18 | |
D. | None of Above | |
Answer: Option B | |||||||
Explanation: | |||||||
Let rate = R% and time = R years.
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