A merchant has 100 lbs of sugar, part of which he sells at 7% profit and the rest at 17% profit.
A merchant has 100 lbs of sugar, part of which he sells at 7% profit and the rest at 17% profit. He gains 10 % on the whole. Find how much is sold at 7% profit?
Answer/Solution
70 lbs
Steps/Work
100(x)(7/100)+(100(1-x)) (17/100)=100(10/100)
7x+17-17x=10
-10 x=-7
x=7/10
100lbs x (7/10) = 70 lbs
ANSWER:A
7x+17-17x=10
-10 x=-7
x=7/10
100lbs x (7/10) = 70 lbs
ANSWER:A