GWD4-17

evelyn205205

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) %

ANSWER: D 没懂什么意思~
先在此谢谢各位大侠

evelyn205205

I APPRECIATE YOUR DETAILED EXPLANATION.

kazemi

Price Per Share (PPS) = x
Earning Per Share(EPS) = y

Increased PPS = x(1+k/100)
Increased EPS = y(1+m/100)

% increase in the ratios (PPS/EPS) = {[x(100+k)]/[y(100+m)] - (x/y)} / (x/y)

On Simplifying, % increase = [100(k-m)] / (100 + m) % , hence (D).

evelyn205205

有哪位好心的大侠抽空帮我看一下GWD4-17啊？

evelyn205205

A solid yellow stripe is to be painted in the middle of a certain highway.If 1 gallon of paint covers an area of p square feet of highway, how many gallons of paint will be needed to paint a stripe t inches wide on a stretch of highway m miles long?(1 mile = 5,280 feet and 1 foot = 12 inches)


A.(5,280 mt) / 12p
B.(5,280 pt) / 12m
C.(5,280 pmt) / 12
D.(5,280)(12m) / pt
E.(5,280)(12p) / mt

答案是A, 可是我算出来的是5280mtp/12=440mtp。为什么答案是这样的呢？

-- by 会员 evelyn205205 (2011/2/4 17:10:17)

发错了，不好意思

evelyn205205

A solid yellow stripe is to be painted in the middle of a certain highway.If 1 gallon of paint covers an area of p square feet of highway, how many gallons of paint will be needed to paint a stripe t inches wide on a stretch of highway m miles long?(1 mile = 5,280 feet and 1 foot = 12 inches)


A.(5,280 mt) / 12p
B.(5,280 pt) / 12m
C.(5,280 pmt) / 12
D.(5,280)(12m) / pt
E.(5,280)(12p) / mt

答案是A, 可是我算出来的是5280mtp/12=440mtp。为什么答案是这样的呢？