Reading Time: < 1 minute
Last Updated on April 5, 2022
GMAT OFFICIAL GUIDE PS
Solution:
We can first set up our ratio using variable multipliers. We are given that a fruit-salad mixture consists of apples, peaches, and grapes, in the ratio of 6:5:2, respectively, by weight. Thus, we can say:
apples : peaches : grapes = 6x : 5x : 2x
We are given that 39 pounds of the mixture is prepared so we can set up the following question and determine a value for x:
6x + 5x + 2x = 39
13x = 39
x = 3
Now we can determine the number of pounds of apples and of grapes.
pounds of grapes = (2)(3) = 6
pounds of apples = (6)(3) = 18
Thus we know that there are 18 – 6 = 12 more pounds of apples than grapes.
Answer: B
