mrs harjeet bought two bags for rs 1150 each . she sopd one of them at a gain of 6% and the other at a loss of 2% . how much did she gain
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this type of question you can solve with help of concept,
%gain or loss = x + y + xy/100,
where, x and y denote the gain or loss
note :- if loss then use with negative sign.
here, Let x = 6% and y = - 2% {because loss }
% gain or loss = 6 + (-2) + 6*(-2)/100 = 4 + (-12)/100 = 3.88≈ 4 %
because % sign is positive hence, finally she did gain
now she gain = 4% of 1150 = 4*1150/100 = 4600/100 = 46 Rs
hence, she did gain 46 Rs
%gain or loss = x + y + xy/100,
where, x and y denote the gain or loss
note :- if loss then use with negative sign.
here, Let x = 6% and y = - 2% {because loss }
% gain or loss = 6 + (-2) + 6*(-2)/100 = 4 + (-12)/100 = 3.88≈ 4 %
because % sign is positive hence, finally she did gain
now she gain = 4% of 1150 = 4*1150/100 = 4600/100 = 46 Rs
hence, she did gain 46 Rs
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