If the average of 55, 48, 507, 2, 684 and y is 223, then what is y?
Choose the correct choice from the following choices
A) 701
B) 120
C) 42
D) 868
E) 1

Rationale: y = 42 , because : ( 55 + 48 + 507 + 2 + 684 + y ) / 6 = 223 ( 55 + 48 + 507 + 2 + 684 + y ) / 6 * 6 = 223 * 6 ( 55 + 48 + 507 + 2 + 684 + y ) - 1296 = 1338 - 1296 y = 42 so the correct answer is c , 42 .
Answer: C