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प्रश्न
A shopkeeper marks the price of an article at Rs. 1200. Find the selling price, if he allows:
two successive discounts of 15% and 10%.
उत्तर
M.P. = Rs.1200
S.P. = `(1 - "d"_1/100)(1 - "d"_2/100)` of M.P.
⇒ S.P. = `(1 - 15/100)(1 - 10/100) xx 1200`
⇒ S.P. = `(85)/(100) xx (90)/(100) xx 1200`
⇒ S.P. = Rs.918.
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