ANALYZE THE STIMULUS:
Fact: Box office receipts for independent movies for the first half of this year have increased by 20 percent over the total receipts for independent movies for all of last year.
Fact: Last year, 50 independent movies were released, while so far this year only 20 independent movies have been released.
Fact: The number of independent movies slated for release in the second half of this year is roughly equal to the number released so far.
Question:
If the statements above are true, which of the following must be true? <== This is MUST BE TRUE question, so
NO "new" information accepted.
ANALYZE EACH ANSWER:
1. The total box office receipts for independent movies this year will be significantly more than 20 percent greater than the receipts for independent movies last year
Wrong. TEMPTING. We just know data of the FIRST half of this year.
What if total receipt in the first half is more than 20%, but will decrease significantly in the second half? ==> We can't say total receipts this year will be significantly 20% greater than that of last year. A can't be answer.
2. The number of independent movies released in the first half of this year is
equal to the number released in the first half of last year.Wrong. Absolutely wrong, we don't know how many films were released in the first half of last year.
3. The
price of a movie ticket has not increased since last year.
Wrong. Nothing about the price. Out of scope.
4. The average revenues of the independent films released during the first half of this year is greater than that of all independent films released last year.
Correct. Assume prices do not change significantly. In the first half, total receipts is 20% more than that of total last year. But the number of film released is fewer (20 vs. 50) ==> Clearly, average revenue of each film in the first half of this year is greater than that of film released last year.
5. The
number of people seeing independent movies during the first half of this year is greater than the number who saw independent movies last year.
Wrong. Nothing about number of people. Out of scope.
Hope it helps