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选项
COMBINE 的意思@@
199.
Warehouse W's revenue from the sale of sofas was what percent greater this year than it was last year?
(1) Warehouse W sold 10 percent more sofas this year than it did last year.
(2) Warehouse W's selling price per sofa was $30 greater this year than it was last year.
ANS:E
想请问what percent greater this year than last year
的数学式是: 今年Sale-去年sale/今年sale 吗???
还是除以去年sale??
感谢~
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