A trader sells 40 metres of cloth for Rs.8200 at a profit of Rs.25 per metre of cloth. How much profit will the trder earn on 40 metres of cloth? Choose the correct choice
A) Rs.950  B) Rs.1500  C) Rs.1000  D) Rs.1200  E) None of these
Explanation:   SP of 1 metre cloth = 8200/40 = Rs.205.   CP of 1 metre cloth = Rs.205 – 25 = Rs.180   CP on 40 metres = 180 x 40 = Rs.7200   Profit earned on 40 metres cloth = Rs.8200 – Rs.7200 = Rs.1000.   Answer: Option Rs.1000
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A trader sells 40 metres of cloth for Rs.8200 at a profit of Rs.25 per metre of cloth. How much profit will the trder earn on 40 metres of cloth?