gwd 簡單一問

treewing929 · 发表于 2012-3-1 07:36:08

Last year the price per share of Stock X increased by k percent and the earnings per share of Stock X increased by m percent, where k is greater than m.By what percent did the ratio of price per share to earnings per share increase, in terms of k and m?

A.k/m %

B.(k-m) %

C.[100(k-m)]/(100+k) %

D.[100(k-m)]/(100+m) %

E.[100(k-m)]/(100+k+m) %

答案是 D. 為何下面是 (100+m) ?? 不是 1+m??
謝謝大家!

bonniegemini · 发表于 2012-3-1 07:49:17

percentage 符号在后面啊，类似（100＋5）％＝105％，不是（1＋5）％

treewing929 · 发表于 2012-3-1 08:10:36

是不是:
{[(1+k%)-(1+m%)]/(1+m%)}*100%

treewing929 · 发表于 2012-3-1 08:18:19

percentage 符号在后面啊，类似（100＋5）％＝105％，不是（1＋5）％

-- by 会员 bonniegemini (2012/3/1 7:49:17)

明白了!! 謝謝!!

treewing929 · 发表于 2012-3-1 08:24:37

If –1 < h < 0, which of the following has the greatest value?

A.   1 - h
B.   1 + h
C.   1 + h^2
D.   1 – 1/h
E.   1 – 1/(h^2)
這條答案是 D. 是不是錯了? 應該是 E 吧!?

linchaoyi · 发表于 2012-3-1 08:41:08

If –1 < h < 0, which of the following has the greatest value?

A. 1 - h
B. 1 + h
C. 1 + h^2
D. 1 – 1/h
E. 1 – 1/(h^2)
這條答案是 D. 是不是錯了? 應該是 E 吧!?

-- by 会员 treewing929 (2012/3/1 8:24:37)

D是正数,E是负数...D大

treewing929 · 发表于 2012-3-1 08:48:09

If –1 < h < 0, which of the following has the greatest value?

A. 1 - h
B. 1 + h
C. 1 + h^2
D. 1 – 1/h
E. 1 – 1/(h^2)
這條答案是 D. 是不是錯了? 應該是 E 吧!?

-- by 会员 treewing929 (2012/3/1 8:24:37)

D是正数,E是负数...D大

-- by 会员 linchaoyi (2012/3/1 8:41:08)

呀!! 看錯了! 真大意!! 感謝!!

gwd 簡單一問

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