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1. The banker's gain on a bill due 1 year hence at 12% per annum is Rs. 6. The true discount is:

A. Rs. 72

B. Rs. 36

C. Rs. 54

D. Rs. 50

Solution:

\begin{aligned} T . D . = \frac{B . G . \times 100}{R \times T} \\ = R s . (\frac{6 \times 100}{12 \times 1}) \\ = R s . 50 \end{aligned}

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