ERB Quantitative Reasoning Practice Test

According to the graph, what is the mean monthly rainfall?

• 7.5 cm

• 8.0 cm

• 9.5 cm

• 10.0 cm

A set of 7 numbers has a mean of 9. What additional number must be included in this set to create a new set with a mean that is 3 less than the mean of the original set?

• –15

• –18

• –23

• –39

Bill has 10 coins, all of which are dimes and quarters. If his dimes were quarters and his quarters were dimes, his coins would total 30 cents more. How many quarters does Bill have? (Note: 1 dime = $0.10; 1 quarter = $0.25)

• 2

• 3

• 4

• 6

• 3 cups

• 3.5 cups

• 4 cups

• 4.5 cups

The area of the entire rectangle shown is 96 cm². What is the area of the shaded region?

• 2 cm²

• 4 cm²

• 8 cm²

• 12 cm²

Which number is closest to the square root of 150?

• 10

• 12

• 20

• 75

The figures show two cubes whose volumes (V) are proportional. What is the ratio of the side length of Figure 1 to the side length of Figure 2?

• 1 to 64

• 1 to 16

• 1 to 4

• 1 to 2

Joey has a new system of currency using coins, stamps, and chips. The values are shown below: 1 coin = 2 stamps, 3 chips = 2 coins. Joey is paying his friend 12 chips. How many stamps is this payment worth?

• 4

• 6

• 12

• 16

The graph shows the relationship between the number of items ordered and the total cost of the order. Using the line of best fit, what is the average cost of a single item when 60 items are ordered?

• $6.67

• $7.50

• $8.33

• $450.00

If 4y - 1 = 7, then what must 8y - 2 equal?

• 2

• 8

• 14

• 16