Answer is correct! Again you seem to have attacked it in swift manner, but I am unable to understand which formula or concept you are using behind it. to calculate percentage profit, you have taken the ratios of the quantity and also I couldn't figure out how did you chose the denominator to be 90 instead of 110? If you can inform the basic fundamental concept/thought process behind it, it would be really helpful.[/quote]
First of all I don't think that this is a GMAT question, since there is certain ambiguity in wording. Next, if we forget about it, then we'll have that he gets 110kg and gives away 90kg
The owner sells 90kg of goods by price of 110kg: % of profit = profit/cost = 20/90 = ~22%.[/quote]
Can someone please explain why should 90 be in the denominator and not 110?? Kindly clarify this doubt. I face this issue a lot in such questions.
First of all I don't think that this is a GMAT question, since there is certain ambiguity in wording. Next, if we forget about it, then we'll have that he gets 110kg and gives away 90kg
The owner sells 90kg of goods by price of 110kg: % of profit = profit/cost = 20/90 = ~22%.[/quote]
Can someone please explain why should 90 be in the denominator and not 110?? Kindly clarify this doubt. I face this issue a lot in such questions.