Three friends rented a car for a week

[BrandenF768]

Data Sufficiency Question

Three friends rented a car for a week and divided the cost equally. What was the total cost of renting the car?

(1) If the three friends had kept the car for a second week, they could have obtained the two-week rate, which was 1.5 times the cost of a one-week rental.

(2) If a fourth friend had joined the three friends and the cost had been divided equally among the four friends, the cost to each of the original three would have been reduced by $15.

[End of question]

My main issue was with statement (1), as I don't understand how the two week rental cost tells us anything about the one week rental cost, which is what we're trying to find. Please advise.

[tim]

What's the problem? You seem to have accurately determined that statement 1 is insufficient, which is correct.

[BrandenF768]

What's the problem? You seem to have accurately determined that statement 1 is insufficient, which is correct.

As exposed by my question above, I got this question incorrect because I read it incorrectly. Totally understand problem now. This happens too often

[RonPurewal]

slow down!