A breakfast that consists of 1 ounce of corn puffs and 8 ounces of Fruit X provides 257 calories. When 8 ounces of...

[BTGmoderatorLU]

Source: GMAT Paper Tests

A breakfast that consists of 1 ounce of corn puffs and 8 ounces of Fruit X provides 257 calories. When 8 ounces of Fruit Y is substituted for the 8 ounces of Fruit X, the total number of calories is reduced to 185. If Fruit X provides 1.8 times as many calories as Fruit Y, how many calories does 8 ounces of Fruit Y provide?

A. 11.25
B. 72
C. 90
D. 95
E. 129.6

The OA is C

[Scott@TargetTestPrep]

Source: GMAT Paper Tests

A breakfast that consists of 1 ounce of corn puffs and 8 ounces of Fruit X provides 257 calories. When 8 ounces of Fruit Y is substituted for the 8 ounces of Fruit X, the total number of calories is reduced to 185. If Fruit X provides 1.8 times as many calories as Fruit Y, how many calories does 8 ounces of Fruit Y provide?

A. 11.25
B. 72
C. 90
D. 95
E. 129.6

The OA is C

Solution:

We see that 8 ounces of fruit X has 257 - 185 = 72 calories more than 8 ounces of fruit Y. Since fruit X provides 1.8 times as many calories as fruit Y, we can create the equations:

X = Y + 72

and

X = 1.8Y

Therefore, we have:

Y + 72 = 1.8Y

72 = 0.8Y

90 = Y

Answer: C