AMU MCA Time and Work Previous Year Question Paper and Solution with PDF

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Qus : 1 AMU MCA PYQ

In what time will a sum of money double itself at $6\ \frac{1}{4}%$ p.a. simple interest?

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AMU MCA Previous Year PYQ AMU MCA AMU MCA 2024 PYQ

For simple interest to double: $T = \frac{100}{R}$ Here $R = 6.25$ $T = \frac{100}{6.25} = 16$ years

Qus : 2 AMU MCA PYQ

In what time will the simple interest on Rs. 780 at 5% be equal to the simple interest on Rs. 600 at $6\ \frac{1}{2}%$?

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AMU MCA Previous Year PYQ AMU MCA AMU MCA 2024 PYQ

Simple interest $= \frac{PRT}{100}$ $\frac{780 \times 5 \times T}{100} = \frac{600 \times 6.5 \times T}{100}$ $39T = 39T$ True for all $T$

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