[問題] GWD 1 Q12

[gimmy03]

Q12:
When n liters of fuel was added to a tank that was already 1/3 full, the tank was filled to 7/9 of its capacity. In terms of n, what is the capacity of the tank, in liters?

A. (10/9)n
B. (4/3)n
C. (3/2)n
D. (9/4)n
E. (7/3)n

Please help~ Thank u...

[Jessy]

樓主你的五個選項怎都一樣啊?
記得送出前先用預覽檢查一下啊~~~
還有,記得附上答案喔!!

[gimmy03]

sorry... 修正完畢
Please help ~

[nicoleliu]

答案是D吧.....下次請記得附上答案阿!!!
這題算式不難~不知道你是不是題目不了解, 幫你順便翻一下題目

題目是說...把n liters的東東加進一個本來就已經1/3滿的容器裡,
加完後容器內變成7/9 滿(從1/3-->變成7/9滿)
問容器容量多少?

設原來容器為x liters,
1/3x +n =7/9 x
n=(7/9-3/9)x=4/9x
thus x=9/4n

[gimmy03]

Nicole 同學果然厲害!! Ans is D....
3Q anyway ~

[chihwa]

講解的很清楚
3Q~