$Hema bought two pairs of jeans for Rs. 725 each. She sold one of them at a gain of 8 % and the other at a loss of 4 % Find her gain or loss per cent in whole transaction.$

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Solution

$C.P. of first jean = Rs.725 G a i n % = 8 % ∴ S . P . = \frac{(10 + g a i n %)}{100} = R s . \frac{725 (100 + 8)}{100} = R s . \frac{725 \times 108}{100} = R s .783 C.P of second jean =Rs.725 L o s s % = 4 % ∴ S.P = \frac{C . P . (100 - L o s s %)}{100} = \frac{725 (100 - 4)}{100} = R s . \frac{725 \times 96}{100} Total C.P. of both jeans =Rs.725+725=Rs.1450 Total S.P =Rs.783+Rs.696=Rs.1479 Gain=S.P. -C.P. =1479-1450=Rs.29 G a i n % = \frac{G a i n \times 100}{C . P} = \frac{29 \times 100}{1450} = 2 % A n s .$

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Hema bought two pairs of jeans for Rs. 725 each. She sold one of them at a gain of 8%and the other at a loss of 4%Find her gain or loss per cent in whole transaction.

$Hema bought two pairs of jeans for Rs. 725 each. She sold one of them at a gain of 8 % and the other at a loss of 4 % Find her gain or loss per cent in whole transaction.$