Ratio And Proportion Quiz 5 (10 MCQs)

Quiz Instructions

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1. The compounded ratio of (2: 3), (6: 11) and (11:2) is

Correct Answer: B) 2:1.

2. If 2:y = 4:8, what is the value of y?

Correct Answer: B) 4.

3. If 3 garbage trucks can collect the trash of 24 homes in a day, how many trucks are needed to collect in 72 houses?

Correct Answer: A) 9.

4. If X:Y = 2:3 and Y:Z = 4:5, what is X:Z?

Correct Answer: D) 8:15.

5. If a recipe calls for 2 cups of flour to make 12 cookies, how many cups of flour are needed to make 36 cookies?

Correct Answer: C) 6 cups.

6. $Are\ these\ proportional?\ 15:21\ and\ 40:56$

Correct Answer: A) Yes.

7. If 5 pens cost $ 15, how much will 8 pens cost?

Correct Answer: A) $ 24.

8. If a 5-floor building has a 20 m long shadow, how many floors high would a building that has a 32 m long shadow be?

Correct Answer: B) 8.

9. A flagpole is 1 in.= 4 ft. If the pole measures 12 inches, how tall is the actual pole?

Correct Answer: C) 48 feet.

10. A proportional relationship exists when x = 7 and y = 4. What is the constant of proportionality in the form of y=kx?

Correct Answer: D) $y=\frac{4}{7}x$.