Question
A shopkeeper sells his goods at 12% loss. Had he sold it
Rs. 400 more then he would gain 8%. Find initial cost price?Solution
CP = 100-unit                     SP1 = 88 unit (12% loss)                                              SP2 = 108 unit (8% profit) SP2 – SP1 = Rs. 400 (108 - 88) unit = Rs. 400  20 unit = Rs. 400 1 unit = Rs. 20 CP = 100 unit = 20 × 100 = Rs. 2000
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