During a three day open house, an art gallery recorded 345 visitors. What is the average rate of visitors per day?

A)

0.007

B)

115

C)

345

D)

1035

2

A coffee house sold 640 L of coffee, and used 40 L of cream. What was the average rate of cream used per litre of coffee?

A)

16

B)

1.6

C)

0.625

D)

0.0625

3

A museum noticed that 18 of the 300 visitors in a week became members of the museum. What is the rate of joining per visitor?

A)

0.06 %

B)

0.6 %

C)

6 %

D)

18 %

4

A tap delivers water at a rate of 12 L/min. How long will it take to fill a pool with a volume of 4800 L?

A)

0.0025 min

B)

12 min

C)

400 min

D)

57 600 min

5

The island of Costa Lido has an over employment rate estimated at an average of 1.32 jobs per citizen. If the population is 2200, how many jobs are there?

A)

2904

B)

2200

C)

1667

D)

1320

6

The Northern Motor Company has discovered a manufacturing error which affected 2.5% of the 1600 automobile engines delivered in the previous month. How many are expected to have the problem?

A)

40

B)

400

C)

640

D)

1600

To learn more about the book this website supports, please visit its Information Center.