Achievement Test Standardized Achievement Problem Solving 3

Question 1

If 5x − 3 = 22, what is the value of x?

Accepted Answer

5

Answer

5x = 25, so x = 5.

Question 2

A pizza is cut into 8 equal slices. After a party, 3 slices remain. What fraction of the pizza was eaten?

Accepted Answer

5/8

Answer

8 − 3 = 5 slices eaten; 5/8 of the pizza was eaten.

Question 3

Which number is a prime number?

Accepted Answer

53

Answer

53 is divisible only by 1 and itself; the others have additional factors.

Question 4

A swimming pool holds 12,000 gallons of water. A pump drains 250 gallons per hour. How many hours will it take to drain 3,000 gallons?

Accepted Answer

12 hours

Answer

3,000 ÷ 250 = 12 hours.

Question 5

What is the least common multiple (LCM) of 6 and 8?

Accepted Answer

24

Answer

The LCM of 6 and 8 is 24, the smallest number divisible by both.

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