12. A merchant
has 1000Kg of sugar,part of which he sells at 8% profit and the rest at 18%
profit. He gains 14% on the whole. The quantity sold at 18% profit is?
Solution:
Profit
on 1st part 8% Profit on 2nd part 18%
Mean Profit 14%
4 6
Ratio
of 1st and 2nd parts =4:6 =2:3.
Quantity
of 2nd ind =3/5*1000Kg =600 Kg.
