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The true discount on a bill of Rs. 540 is Rs. 90. The banker's discount is:

1Rs. 60
2Rs. 108
3Rs. 110
4Rs. 112

Answer:- 1

Explanation:-

Solution:

\begin{aligned} P .W . = R s . (540 - 90) \\ = R s . 450. \\ ∴ S .I . on R s . 450 = R s . 90. \\ S .I . on R s . 540 \\ = R s . (\frac{90}{450} \times 540) \\ = R s . 108 \\ ∴ B .D . = R s . 108. \end{aligned}

$\eqalign{ & {\text{P}}{\text{.W}}{\text{.}} = Rs.\,\left( {540 - 90} \right) \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = Rs.\,450. \cr & \therefore {\text{S}}{\text{.I}}{\text{.}}\,{\text{on}}\,Rs.\,450 = Rs.\,90. \cr & {\text{S}}{\text{.I}}{\text{.}}\,{\text{on}}\,Rs.\,540 \cr & = Rs.\,\left( {\frac{{90}}{{450}} \times 540} \right) \cr & = Rs.\,108 \cr & \therefore {\text{B}}{\text{.D}}. = Rs.\,108. \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} P .W . = R s . (540 - 90) \\ = R s . 450. \\ ∴ S .I . on R s . 450 = R s . 90. \\ S .I . on R s . 540 \\ = R s . (\frac{90}{450} \times 540) \\ = R s . 108 \\ ∴ B .D . = R s . 108. \end{aligned}

$\eqalign{ & {\text{P}}{\text{.W}}{\text{.}} = Rs.\,\left( {540 - 90} \right) \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = Rs.\,450. \cr & \therefore {\text{S}}{\text{.I}}{\text{.}}\,{\text{on}}\,Rs.\,450 = Rs.\,90. \cr & {\text{S}}{\text{.I}}{\text{.}}\,{\text{on}}\,Rs.\,540 \cr & = Rs.\,\left( {\frac{{90}}{{450}} \times 540} \right) \cr & = Rs.\,108 \cr & \therefore {\text{B}}{\text{.D}}. = Rs.\,108. \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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