PP-T2-176

[aqboy[origen]]

176.

In 1995 Division A of Company X had 4,850 customers. If there were 86 service errors in Division A that year, what was the service-error rate, in number of service errors per 100 customers, for Division B of Company X in 1995 ?

(1) In 1995 the overall service-error rate for Divisions A and B combined was 1.5 service errors per 100 customers.

(2) In 1995 Division B had 9,350 customers, none of whom were customers of Division A.

ANS:A

看不懂A選項 COMBINE 的意思@@

[sunnyblue13s]

Divisions A and B combined .... A部門跟B部門...合計~~

[aqboy[origen]]

got it~~