GRE Math Problem 75

Last year Leo bought two paintings. This year he sold them for ">2000 each. On one, he made a 25% profit, and on the other he had a 25% loss. What was his net loss or profit?
(A) He broke even.
(B) He lost less than $100.
(C) He lost more than "$100.
(D) He earned less than $100.
(E) He earned more than $100.

Solution for GRE Math Problem 74:
By what fraction is greater than ?

So, of the number is 7. Therefore, the whole number is 12.

But we were asked about the of this number, so, the answer is 12*3/5=20. Thank you for pointing this in comment :)

Answer:(D)20

Math Problem 7

If the profit on an item is $4 and the sum of the cost and the profit is $20, what is the cost of the item?
(A)$24
(B)$20
(C)$16
(D)$12
(E) Cannot be determined from the information given.

Solution for GRE Math Problem 6:

From 6:15 to 7:15 the minute hand will drew a complete circle, 360°. Then, from 7:15 to 7:45, it drew a half of a circle, 180°. Total: 360+180=540

Answer:(D) 540°