GWD 8-28

[micht]

A total of n trucks and cars are parked in a lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?

A) 1/6n
B) 5/12n
C) 1/2n
D) 8/15n
E)11/12n

Ans: D

求問大家..tks

[huacy]

cars:trucks=1:4
cars: (1/5)n
trucks: (4/5)n
(4/5)n*(2/3) = (8/15)n

[micht]

嘿..原來如此 :-$

感謝站大