1600 yuan, how much salary did we get last month?

2. Reading storybooks, I read13 on the first day and 3/7 on the second day. I read 80 pages in two days. How many pages does this story book have?

3. The store bought a batch of drinks, including 25 cases of coke, 24 bottles in each case, accounting for 2/5 of the total number of drinks, and soda water accounting for 3/50 of the total number of drinks. How many bottles of soda are there?

No company has many foreign employees. Among these foreign employees, 2/7 are female employees and 20 are male employees, which is equivalent to 4/5 of all male employees. It is also known that China employees account for 9/23 of all employees in the company. Excuse me:

(1) How many foreign female employees are there in this company?

(2) How many female employees are there in this company?

There are 480 fewer chickens than ducks on the farm, and there are a quarter more chickens than ducks in Abby Mallard. farm

How many/much?

6. The fruit shop sent a batch of watermelons, which sold two-fifths of the total in the morning and one-third in the afternoon.

There are 320 kilograms left. How many kilograms are these watermelons?

7、

There are 240 junior students, 7/9 middle students and 2/3 senior students. How many seniors are there?

8. For a project, Team A completes one-fifth in four days and Team B completes one-sixth in five days. How many days does it take for the two teams to complete a quarter together?