Question

A vendor bought oranges at 20 for rs 56 and sold them at rs 35 per dozen. Find his gain or loss %.

Answer 1

cp of 20 oranges=56 rs
cp of 1 orange=56/20=2.8 rs
sp of 12 oranges=35 rs
sp of 1 orange =35/12=2.9 rs
gain=2.9-2.8=0.1 rs
gain%=(0.1*100)/2.8
          =100/28
          =7.14%
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