swerve wrote:The profit from the sale of a certain appliance increases, though not proportionally, with the number of units sold. Did the profit exceed $4 million on sales of 380,000 units?
1) The profit exceeded $2 million on sales of 200,000 units.
2) The profit exceeded $5 million on sales of 350,000 units.
The OA is B
Source: Official Guide
Target question: Did the profit exceed $4 million on sales of 380,000 units?
Given: The profit from the sale of a certain appliance increases, though not proportionally, with the number of units sold.
IMPORTANT: This means that we CANNOT make any "good" assumptions about the profits from sales other those presented in statements 1 and 2. All we know FOR CERTAIN is that increased unit sales means increased profits. That's it.
Statement 1: The profit exceeded $2 million on sales of 200,000 units.
The given information (about profits NOT being proportional) means that the ONLY conclusion we can draw here is that the profit from the sale of 380,000 units must be greater than $2 million. That's it.
So, the profit from the sale of 380,000 units could be
greater than $4 million or
less than $4 million.
Since we cannot answer the
target question with certainty, statement 1 is NOT SUFFICIENT
Statement 2: The profit exceeded $5 million on sales of 350,000 units.
From the given information, we can conclude (with certainty) that the profit from the sale of 380,000 units must be greater than $5 million.
This means that the
the profit from the sale of 380,000 units DEFINITELY exceeded $4 million
Since we can answer the
target question with certainty, statement 2 is SUFFICIENT
Answer: B
Cheers,
Brent
