Question
The present worth of a certain bill due sometime hence is Rs. 800 and the true discount is Rs. 36. The banker's discount is:
Answer: Option B
$$\eqalign{
& B.G. = \frac{{{{\left( {T.D.} \right)}^2}}}{{P.W.}} \cr
& = Rs.\,\left( {\frac{{36 \times 36}}{{800}}} \right) \cr
& = Rs.\,1.62 \cr
& \therefore B.D. = \left( {T.D. + B.G.} \right) \cr
& = Rs.\,\left( {36 + 1.62} \right) \cr
& = Rs.\,37.62 \cr} $$
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$$\eqalign{
& B.G. = \frac{{{{\left( {T.D.} \right)}^2}}}{{P.W.}} \cr
& = Rs.\,\left( {\frac{{36 \times 36}}{{800}}} \right) \cr
& = Rs.\,1.62 \cr
& \therefore B.D. = \left( {T.D. + B.G.} \right) \cr
& = Rs.\,\left( {36 + 1.62} \right) \cr
& = Rs.\,37.62 \cr} $$
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