What was the revenue that a theater received from the sale

[BTGmoderatorLU]

Source: Official Guide

What was the revenue that a theater received from the sale of 400 tickets, some of which were sold at the full price and the remainder of which were sold at a reduced price?

1) The number of tickets sold at the full price was 1/4 of the total number of tickets sold.
2) The full price of a ticket was $25.

The OA is E

[Brent@GMATPrepNow]

Source: Official Guide

What was the revenue that a theater received from the sale of 400 tickets, some of which were sold at the full price and the remainder of which were sold at a reduced price?

1) The number of tickets sold at the full price was 1/4 of the total number of tickets sold.
2) The full price of a ticket was $25.

The OA is E

Target question: What was the revenue that a theater received from the sale of 400 tickets
Jump straight to . . .

Statements 1 and 2 combined
The combined statements tell us that 100 tickets sold for the full price of $25 each.
The remaining 300 tickets were sold at some reduced price.
Since we don't know the reduced price, there's no way to determine the total revenue from the sale of the 400 tickets
The combined statements are NOT SUFFICIENT

Answer: E

Cheers,
Brent