LSAT 112 | Section 4 | Logical Reasoning: Q22

LR Question 22 Explanation

QUESTION TEXT: In a recent study, a group of subjects had their normal…

QUESTION TYPE: Most Strongly Supported

FACTS:

1. One group replaced 25% of their caloric intake with alcohol.
2. Another group simply added 25% to their caloric intake, in the form of alcohol.
3. Both groups gained fat and they gained the same amount of fat.

ANALYSIS: This indicates that total calories are not the only factor in weight gain. One group ate 25% more calories than the other, yet weight gain in each group was identical.

___________

1. We don’t know if alcohol was metabolized more quickly. We just know it contributed to weight gain (but not why.) 
2. Hard to say. Alcohol seems to have an effect but some other things could have a greater effect.
3. In this case we don’t know if the subjects gained weight or only gained fat (and lost muscle, therefore losing weight overall.)
4. CORRECT. The two groups ate different amounts of calories yet gained the same amount of fat. 
5. We don’t know. If you ate only 100 calories per day and 90% of them were fat, you would still lose weight. You’d starve, in fact.