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Question
Find the S.P. if M.P. = Rs 500 and Discount = 15%.
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Solution
\[\text { We know that SP = MP - Discount }\]
\[\text { Discount % } = \frac{Discount}{MP} \times 100\]
\[\text { Discount = } \frac{\text { Discount % } \times MP}{100}\]
\[ = \frac{15 \times 500}{100}\]
\[\text { So, SP = Rs } . \left( 500 - \left( \frac{15}{100} \times 500 \right) \right)\]
\[ = Rs . (500 - 75)\]
\[ = Rs . 425\]
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