Mandal purchased sugar of different quality at the ratio of Rs.80 per kg and Rs.60 . He mixed both in the ratio of 4:3 and sold at the rate of Rs.72 per kg. Find the gain or loss percent.
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Answer:
= 4x+3x=72kg
=7x=72kg
=x=72÷7
=x=10.28
so,4x=4×10.28=41.12
3x=3×10.28=30.84
so,it is the answer
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