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A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is:

Answer» C.P. of 1st transistor = Rs. 100 x 840 = Rs. 700. 120 C.P. of 2nd transistor = Rs. 100 x 960 = Rs. 1000 96 So, total C.P. = Rs. (700 + 1000) = Rs. 1700. Total S.P. = Rs. (840 + 960) = Rs. 1800. Gain % = 100 x 100 % = 5 15 % 1700 17


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