Introduction to Ratios

Q. What is the difference between fractions and ratio?

Q.

The ratio 5:20 expressed as percent equals to 25.

1. True

2. False

Q. In a college, the ratio of the number of boys to girls is 8 : 5. If there are 200 girls, the total number of students in the college is

1. 300
2. 480
3. 520
4. 670

Q. Rafi has 16 red marbles and 4 blue marbles. Find the ratio of red marbles to blue marbles Rafi has?

Q. In the given figure, find the ratio of

(i) Shaded parts to unshaded parts
(ii) Shaded parts to total parts
(iii) Unshaded parts to total parts

Q.

Ratio of 35 to 45 is

1. 5:7
2. 7:9
3. 5:9

Q. What is the difference between an equivalent ratio and a proportion ?

Q. Find the ratio of the first quantity to the second.
30 litres, 24 litres

Q. What is the difference between fractions and ratios ?

Q. The boys and the girls in a school are in the ratio 9:5 if the total strenth of the school is 448 , find the number of girls

Q.

Express the following ratios in simplest form:

$\frac{1}{15}:\frac{1}{25}$

Q. What is the simplest form of the ratio of 84 to 96?

1. 21:24
2. 28:32
3. 7:8
4. 8:7

Q.

Find the ratio of each of the following in the simplest form:-

$₹7.80$to $65$ paise

Q. The boys and girls in school are in the ratio of 7:9.if the total strength of the school is 672, find the number of girls

Q. A group of five students contains 4 boys and 1 girl. Which of the following statements are correct?

1. The ratio of boys to girls is 4 : 1.
2. The fraction of girls in the group is $\frac{1}{4}$.
3. The ratio of girls to boys is 1 : 5.
4. The fraction of boys in the group is $\frac{4}{5}$

Q. Sam has a collection of 10 stickers in various colours, as represented in the image given below. Represent the ratio of green stickers to the total number of stickers.

1. 2 : 10
2. 1 : 10
3. 1 : 5
4. 10 : 2

Q. Fraction is a number but ratio is a __________ .

1. proportion
2. relation
3. unit
4. identity

Q. Which of the following measurements is the greatest: 24 cm, 24 m, 2400 mm, 240 cm

1. 2400 mm
2. 24 cm
3. 24 m
4. 240 cm

Q. Find ratio in the simplest form
1= 360:80
2=777:1147

Q. If the cost of 5 kg of wheat is ₹100, then match the following quantities of wheat with their cost.

1. ₹200
2. ₹60
3. ₹720

Q.

In a regular polygon, the ratio of the interior angle to the corresponding exterior angle is 14 : 4. How many sides does this polygon have ?

1. 3

2. 7

3. 10

4. 9

Q. The monthly salary of a person is $\text{Rs}12,000$ and his monthly expenditure is $\text{Rs}8,500$. Find the ratio of his:
i) salary to expenditure

Q. Match the following figures with the ratios represented by the shaded to the unshaded portions.

1. $\frac{2}{7}$
2. $\frac{4}{5}$
3. $\frac{6}{2}$

Q. The number of boys and girls in a school are 1168 and 1095 respectively. Express the ratio of the number of boys to that of the girls in the simplest form.

Q. What is the ratio of 3 weeks to 9600 minutes?

1. 14:27
2. 15:32
3. 14:29
4. 63:20

Q. Write the each of the following ratios in their simplest form.

(3) 25 : 45

Q. What will be the ratio of 4 kg to 12 kg?

1. 4 : 1
2. 2 : 3
3. 1 : 3
4. 8 : 3

Q. What is the smallest composite number?

1. 2
2. 6
3. 4
4. 3

Q.

Gaurav has 48 pens and 36 pencils. The ratio of pencils to pens expressed in the simplest form is-

1. 3:4

2. 3:7

3. 4:7

4. 4:3

Q. If $A:B=\frac{1}{2}:\frac{3}{8},B:C=\frac{1}{3}:\frac{5}{9},C:D=\frac{5}{6}:\frac{3}{4}$, then the ratio $A:B:C:D$ is

1. $4:6:8:10$
2. $6:4:8:10$
3. $8:6:10:9$
4. $6:8:9:10$