NTN Mathematics 3

Question 1

If a recipe requires 2.5 cups of flour for 12 cookies, how many cups are needed for 36 cookies?

Accepted Answer

7.5 cups

Answer

36 cookies is 3× the recipe, so 2.5 × 3 = 7.5 cups.

Question 2

What is the median of the following set: 4, 7, 2, 9, 5?

Accepted Answer

5

Answer

Ordered: 2, 4, 5, 7, 9 — the middle value is 5.

Question 3

A tank holds 500 gallons. If it is 40% full, how many gallons are in the tank?

Accepted Answer

200 gallons

Answer

40% of 500 = 0.40 × 500 = 200 gallons.

Question 4

What is the result of (−6) × (−4)?

Accepted Answer

24

Answer

A negative times a negative equals a positive: (−6) × (−4) = +24.

Question 5

Simplify: 18/24

Accepted Answer

3/4

Answer

GCF of 18 and 24 is 6; 18÷6 = 3 and 24÷6 = 4, so 18/24 = 3/4.

NTN - National Testing Network Practice Test