請教幾題數學

oneseven

我已經找過總匯了，都沒有找到才發問的 盼望指教

GWD06

Q1:

A certain company’s profit in 1996 was 15 percent greater than its profit in 1995, and its profit in 1997 was 20 percent greater than its profit in 1996.  The company’s profit in 1997 was what percent greater than its profit in 1995?

 

A.       5%

B.        18%

C.       33%

D.       35%

E.        38%

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Q12:

Each week Connie receives a base salary of $500, plus a 20 percent commission on the total amount of her sales that week in excess of $1,500.  What was the total amount of Connie’s sales last week?

(1)     Last week Connie’s base salary and commission totaled $1,200.

      (2)    Last week Connie’s commission was $700.

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Q19:

At a certain company, 25 percent of the employees are male and 50 percent of the employees are sales staff.  What is the number of employees at this company?

(1)     Exactly 7 of the employees at the company are males who are sales staff.

(2)     There are 16 more female employees than male employees at the       

               company.

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Q28:

A total of n trucks and cars are parked in a slot.  If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the slot?

A.     1/6 n

B.      5/12 n

C.     1/2 n

D.     8/15 n

E.      11/12 n

sammy生米

建议LZ一贴一问，标题写上题号，方便后人查找，谢谢合作了！

用“编辑”更改，后面3题另开新贴吧