$Wasim bought two cricket bats for Rs.560 and Rs. 240 respectively,He sells the first bat at a gain of 15 % and the second one at a loss of 5 % Find his gain or loss per cent in the whole transaction.$

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Solution

$C.P. of first bat = Rs.560 Gain % = 15 % ∴ S . P . = \frac{C . P . (100 + g a i n %)}{100} = R s . \frac{560 (100 + 15)}{100} = R s .560 \times \frac{115}{100} = R s .644 C.P of second bat =Rs.240 L o s s % = 5 % = R s . \frac{C . P . (100 - L o s s %)}{100} = R s . \frac{240 (100 - 5)}{100} = R s . \frac{240 \times 95}{100} = R s .228 Total S.P. of two bats = R. 644+ Rs.228=Rs.872 Total C.P. =Rs.560+Rs.240=Rs.800 ∴ Total Gain =S.P.-C.P. = R s .872 - R s .800 = R s .72 G a i n % = \frac{G a i n \times 100}{C . P} = \frac{72 \times 100}{800} = 9 % A n s .$

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Wasim bought two cricket bats for Rs.560 and Rs. 240 respectively,He sells the first bat at a gain of 15%and the second one at a loss of 5%Find his gain or loss per cent in the whole transaction.

$Wasim bought two cricket bats for Rs.560 and Rs. 240 respectively,He sells the first bat at a gain of 15 % and the second one at a loss of 5 % Find his gain or loss per cent in the whole transaction.$