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Question

Shabana bought 16 dozen ball bens and sold them at a loss equal to S.P. of 8 ball pens. Find
(i) her loss percent
(ii) S.P. of 1 dozen ball pens, if she purchased these 16 dozen ball pens for Rs 576.

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Solution

(i) Number of pens bought =16×12=192Let the S.P of one pen be Rs. x.Therefore, S.P of 192 pens=Rs. 192xS.P of 8 pens=Rs. 8xIt is given that S.P of 8 pens is equal to the loss on selling 192 pens.Therefore, loss= Rs. 8xC.P of 192 pens = Rs. 576So, loss=C.P-S.P8x=576-192x200x=576x=576200=2.88Therefore, loss=82.88=Rs. 23.04Loss%=loss×100C.P=23.04×100576=4%(ii) S.P of 1 pen=Rs. 2.88Therefore, S.P of 1 dozen pens=12x=12×2.88=Rs. 34.56

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