sandy wrote:
Jamal got three monthly electric bills over the course of three months. If his average monthly bill over these three months was $44 more than the median bill, and the sum of the largest and the smallest bills was $412, what was the total amount of the three electric bills Jamal got over the course of the three months?
(A) $456
(B) $552
(C) $600
(D) $824
(E) $1,000
Let a,b,c are there months bills and b be median and a and c are largest and smallest respectively.
Given a+b+c/3 = 44+b, sub a+c = 412 in this equation and finally we get b = 140.
Now given a+c = 412 and b = 140 => Total = 552.
B.