In a certain brick wall, each row of bricks above the bottom row contains one less brick than the row just below it. If

[Vincen]

In a certain brick wall, each row of bricks above the bottom row contains one less brick than the row just below it. If there are 5 rows in all and a total of 75 bricks in the wall, how many bricks does the bottom row contain?

(A) 14
(B) 15
(C) 16
(D) 17
(E) 18

Answer: D

Source: GMAT Paper Tests