AN unscrupulous trader decided to make some extra profit
on coffee. He bought one type of coffee powder at Rs. 32 a kilo and mixed some
of it with a better quality of coffee powder bought at Rs.40 a kilo, and he
sold the blend at Rs. 43 a kilo. That gave him a profit of 25 per cent on the
cost.
How many kilos of each kind must he use to make a blend of a
hundred kilos weight?
Answer: The
merchant must mix 70 kilos of the Rs. 32 Coffee with 30 kilos of Rs. 40 coffee.
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