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Hi, watch this revision/overview videos

an artical is sold at certain price if it is sold at 33 1/3%of this price there is loss of 33 1/3%.what is the percentage profit when it is sold at 60% of the original selling price

sp/3 = 2/3(cp-sp) s/c = 2/3 now, 2*3/5 = 6/5 new, cp: sp= 15:6 9/15 * 100= 60% loss

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let he invested, x and 10,000-x so, he will receive a total of x * (1.14 ^ 2) + (10,000 -x) * (1.11 ^ 2) = 2726 Solve to get 10,000-x value.

If the options are not too close, do 44000/2000 * 400

Use BODMAS rule,you will never be confused again about what to add or multiply first.