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If the interest on Rs. 50 at 4 1/ 2 be equal to the discount on Rs. 59 for the same time and at the same rate when is the latter sum due?

2 years
4 years
6 years
3 years

Correct Answer: 4 years

Explanation:

∵ 9/2 = [(59 - 50) x 100] / 50 x T
∴ T = 4 years

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