The ratio of apples to oranges in a fruit basket is 7:3. If there are 21 oranges, how many apples are there?

Select one of the following:

9

27

49

63

Explanation

Question 2 of 10

1

Which of the following is an example of odds notation?

Select one of the following:

15 to 7

15:7

15/7

Explanation

Question 3 of 10

1

The total number of ducks and geese in a pond is 40. If there are 12 ducks, what is the ratio of ducks to geese?

Select one of the following:

3:7

7:3

3:10

10:3

Explanation

Question 4 of 10

1

There are 30 students in a class, the ratio of boys to girls is 2:1. Assuming the same number of boys, how many more girls are needed in the class to invert this ratio (i.e so that it is 1:2)?

Select one of the following:

10

20

30

40

Explanation

Question 5 of 10

1

Out of 100 pens, 30 are red, 45 are blue and the rest are green. Which of the following expresses the ratio of red pens to green pens to blue pens?

Select one of the following:

6:9:5

5:9:6

6:5:9

9:6:5

Explanation

Question 6 of 10

1

x:4 = 3:28
x = ?

Select one of the following:

28/12

4/3

7/4

3/7

Explanation

Question 7 of 10

1

If x is 4 times bigger than y, and the difference between x and y is 9, what is x equal to?

Select one of the following:

10

24

9

12

Explanation

Question 8 of 10

1

The scale on a map is 9cm : 10km. If two cities are 80km apart, how far away are they on the map?

Select one of the following:

80cm

63cm

72cm

90cm

Explanation

Question 9 of 10

1

For every 6 apples Tom buys, he eats 2, and gives 2 to his sister. For every 5 apples his sister gets from Tom, she eats 3. If Tom buys 60 apples, how many of them will be eaten?

Select one of the following:

15

24

48

32

Explanation

Question 10 of 10

1

John has 4 times more pencils than Megan. He gives he Megan 4 pencils, and now he only has twice as many pencils. How many pencils did Megan start with?