Stanford Achievement Test Stanford Achievement Mathematics Problem Solving

Question 1

A bag contains 4 red marbles, 3 blue marbles, and 5 green marbles. If one marble is picked at random, what is the probability it is blue?

Accepted Answer

3/12

Answer

1/4

Answer

1/3

Answer

5/12

Question 2

Sarah earns $8.50 per hour. If she works 6 hours on Saturday and 4 hours on Sunday, how much does she earn in total?

Accepted Answer

$85.00

Answer

$51.00

Answer

$34.00

Answer

$76.50

Question 3

A rectangle has a length of 12 cm and a width of 7 cm. What is its area?

Accepted Answer

84 cm²

Answer

38 cm²

Answer

76 cm²

Answer

19 cm²

Question 4

If 3n + 7 = 25, what is the value of n?

Accepted Answer

6

Answer

4

Answer

9

Answer

8

Question 5

A train travels at 60 miles per hour. How many miles does it travel in 2 hours and 30 minutes?

Accepted Answer

150 miles

Answer

120 miles

Answer

180 miles

Answer

90 miles

Question 6

What is 15% of 240?

Accepted Answer

36

Answer

30

Answer

24

Answer

48

Question 7

A store sells apples for $0.45 each. Marcus buys 12 apples and pays with a $10 bill. How much change does he receive?

Accepted Answer

$4.60

Answer

$5.40

Answer

$4.40

Answer

$5.60