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Question

Calculate time when SI on 2000 Rupees at 10% pa be the same as that on Rs.3000 at 12% pa in 4 years

A
7 years
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B
7.2 years
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C
7.4 years
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D
7.6 years
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Solution

The correct option is B 7.2 years
Let time is T years
2000×10×T100=3000×12×4100
T=12×4×32×10=7.2 years

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