ICAS Mathematics 5

Question 1

A store marks up a $50 item by 30%. What is the selling price?

Accepted Answer

$65

Answer

Markup = 30% × $50 = $15, so selling price = $50 + $15 = $65.

Question 2

Which of the following is a solution to 2x + 3 = 11?

Accepted Answer

x = 4

Answer

2(4) + 3 = 8 + 3 = 11, so x = 4 is the solution.

Question 3

A map uses a scale of 1 cm : 50 km. If two cities are 6 cm apart on the map, what is the actual distance?

Accepted Answer

300 km

Answer

Actual distance = 6 × 50 = 300 km.

Question 4

What is the mode of the data set: 4, 7, 4, 9, 7, 4, 3?

Accepted Answer

4

Answer

The value 4 appears 3 times, more than any other value, so it is the mode.

Question 5

Two angles are supplementary. One angle measures 112°. What is the measure of the other?

Accepted Answer

68°

Answer

Supplementary angles sum to 180°, so the other angle = 180 − 112 = 68°.

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