If the average (arithmetic mean) of the assessed values
of x houses is $212,000 and the average of the assessed
values of y other houses is $194,000, what is the average
of the assessed values of the x+y houses?
(1) x+y=36
(2) x=2y
Here if i put x = 2y in the equation (212000x + 194000y)/(x + y) then y gets canceled and thus we get the average answer.
OA : C, my answer : B
of x houses is $212,000 and the average of the assessed
values of y other houses is $194,000, what is the average
of the assessed values of the x+y houses?
(1) x+y=36
(2) x=2y
Here if i put x = 2y in the equation (212000x + 194000y)/(x + y) then y gets canceled and thus we get the average answer.
OA : C, my answer : B
