[問題]GR92-2 section 4(26)

[spain]

26. If X is the number on the number line between 5 and 15 that is twice as far from 5 as from 15,

A. 5(2/3)

B. 10

C. 11(2/3)

D. 12(1/2)

E. 13(1/3)

這題題目是啥意思啊???聯題目都看不懂...真糟糕...

[ldaaawg]

it means that x is twice as close to 15 than to 5. x 和五的距離是x和十五的距離的兩倍. 也就是說x比較靠近十五. 30-2x = x-5 So x = 11(2/3)

[spain]

謝謝...恍然大悟!