扫描二维码，直接登录
题库 / Prep2007E2-DS-140
A manufacturer produced x percent more video cameras in 1994 than in 1993 and y percent more video cameras in 1995 than in 1994. If the manufacturer produced 1,000 video cameras in 1993, how many video cameras did the manufacturer produce in 1995 ?
(1) xy = 20
(2) ~$x+y+\frac{xy}{100}=9.2$~
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
Q(1995)=1000*(1+x%)*(1+y%)=1000+1000((x+y)/100+xy/10000)
将(2)式两边除以100-->(x+y)/100+xy/10000=9.2/100-->Q(1995)=1092
登录 或 注册 后可以参加讨论