If marked price of an article is Rs 1200 and the discount is 12%, then the selling price of the article is
(a) Rs 1056
(b) Rs 1344
(c) Rs 1212
(d) Rs 1188

Find the rate of discount.

Marked price = Rs. 550; Selling price = Rs. 495

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At 12% discount, the selling price of a pen is Rs.13.20 Find its marked price.

The correct option is A Rs. 15Discount % =MarkedPrice−SellingPriceMarkedPrice×100=12 % =>M.P.−13.20M.P.×100=12=>M.P.−13.20=0.12M.P.=>0.88M.P.=13.20=>M.P.=Rs15

The correct option is A Rs. $15$
Discount % $= \frac{M a r k e d P r i c e - S e l l i n g P r i c e}{M a r k e d P r i c e} \times 100 = 12$ %

$=> \frac{M . P . - 13.20}{M . P .} \times 100 = 12$
$=> M . P . - 13.20 = 0.12 M . P .$
$=> 0.88 M . P . = 13.20$
$=> M . P . = R s 15$