Chapter 4: Ratio, Rate And Proportion
10 Questions
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Test your understanding of ratio, rate and proportion.
Questions and Answers
- 1.1. Johnny has a bag full of marbles that he keeps in his desk. He has 35 red marbles and 25 green marbles. Find the ratio of red marbles to green marbles, and put it in its simplest form.
- A.
35:25
- B.
7:5
- C.
25:35
- D.
5:7
- E.
6:5
- 2.If it costs $90 to feed a family of 3 for one week, how much will it cost to feed a family of 5 for one week?
- A.
$180.00
- B.
$30.00
- C.
$120.00
- D.
$150.00
- 3.In a school there are four boy scouts to every three girl scouts. If there are forty-two girl scouts, how many boy scouts are there?
- A.
56 boy scouts
- B.
56 girl scouts
- C.
31.5 girl scouts
- D.
31.5 boy scouts
- E.
48 boy scouts
- 4.To make green paint, Jack mixes yellow paint and blue paint in the ratio of three to two. If he used twelve gallons of yellow paint, how much blue paint did he use?
- A.
4
- B.
6
- C.
7
- D.
8
- E.
12
- 5.On a triangle, each side measures 5 cm, 10 cm, and 30 cm, respectively. In lowest terms, find the ratios of the lengths of the sides.
- A.
1:2:6
- B.
5:10:30
- C.
.5:1:3
- D.
5/10/30
- 6.Crystal mixed orange juice, fruit punch concentrate, and ginger ale in the ratio of 2:2:4 to make a special drink. To make 4 liters, how much of each ingredient should she use?
- A.
2L orange, 2L punch, 4L ginger ale
- B.
8L orange, 8L punch, 16L ginger ale
- C.
2L orange, 1L punch, 1L ginger ale
- D.
1L orange, 1L punch, 2L ginger ale
- 7.A rectangle measures 20cm at its width and 5 cm at its length. Find the ratio of the length to the width to the perimeter of the rectangle in lowest form.
- A.
1:4:10
- B.
4:1:10
- C.
5:20:50
- D.
20:5:50
- E.
None of the above
- 8.Brandon received $50 dollars for his paper route. He spent $20 dollars at the movies, and $10 dollars buying comic books then after buying $5 worth of popcorn, he saved the rest. What is the ratio of the amount of money spent buying comic books and popcorn, to the amount that saved?
- A.
10:5:15
- B.
15:15
- C.
1:1
- D.
2:1:3
- E.
1:2:3
- 9.In Canada there is one car for every 1.9 people. How many car tires per person are there?
- A.
40/19:1
- B.
2:1
- C.
4:1
- D.
40:19
- 10.One out of three students in the school owns a cat. Of these students one out of two owns a fish. What fraction of the students owns both a cat and a fish?
- A.
1/6 of all students own both a cat and a fish.
- B.
1/2 of all students own both a cat and a fish.
- C.
5/6 of all students own both a cat and a fish.
- D.
3/4 of all students own both a cat and a fish.
- E.
1/4 of all students own both a cat and a fish.
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