If the cp of 10 notebook is equal to the s.p of 8 notebooks,find the gain or loss per cent
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10 cp = 8 sp
ratio of cp : sp
cp : sp
8 : 10
4 : 5
% gain = (5-4)/4×100= 1/4 × 100= 25 %
ratio of cp : sp
cp : sp
8 : 10
4 : 5
% gain = (5-4)/4×100= 1/4 × 100= 25 %
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