Introduction to Ratio

Q. is a relationship between two numbers, indicating how many times the first number contains the second number.

1. Ratio
2. Average
3. Proportion

Q.

The father's present age is 42 years and that of his son is 14 years. Find the ratio of the age of father to son, when the son was 12 years old.

1. 3:1

2. 1:3

3. 3:10

4. 10:3

Q. If the ratio of the length to the breadth of a rectangle be 5:3 and its perimeter is 144 m. Find the length of the rectangle?

Q.

In a class, the number of boys is more than the number of girls by 12%. Find the ratio of number of boys to the number of girls.

Q. If the ratio of girls to boys in a class is 5:6 and the total number of students is 66, then find the number of boys.

1. 36
2. 30
3. 22
4. 42

Q.

In a box the ratio of red marble to Blue marble is 7: 4. find the total number of marble if there are 33 blue Marble in the box

Q.

Question 51

A line segment 56cm long is to be divided into two parts in the ratio of 2 : 5. Find the length of each part.

Q.

The Ages of A and B are in the ratio of 5:3, after six years their ages will be in the ratio of 7:5. The present age of A is

1. 10 years

2. 20 years

3. 5 years

4. 15 years

Q. If 10 pens cost 60 rupees, what is the cost of 15 such pens?

Q. Ratio of the length to the breadth of a rectangle is 3 : 2. If the perimeter of the rectangle is 30 cm, then, its length is cm.

1. 6
2. 9
3. 8

Q. The ratio of the number of girls to the number of the boys in a class is 2:3. If total number of the students in the class is 45, then the number of the boys is:

1. 27
2. 25
3. 18
4. 9

Q.

Find the ratio between:

$400gramsand3Kg$

Q.

The boys and girls in a school are in the ratio 8:3 . If the number of girls is 405, how many boys are there in the school ?

Q.

In a hostel, a certain quantity of rice is spent daily for 30 students. On a certain day, some students were absent, as a result, the quantity of rice spent decreased by a ratio of 1:6 in comparison to a normal day. No. of students absent on that day was ___ .

Q.

The ratio between the price of a scooter and a refrigerator is 4 ratio 1 if the scooter cost rupees 45000 more than the refrigerator refrigerator find the price of the refrigerator

Q. What is the ratio of the smallest two digit number to the smallest four digit number?

1. 1 : 100
2. 10 : 100
3. 100 : 1
4. 1 : 10

Q.

Question 41

Fill in the blanks to make the statements true.

Sleeping time of a python in a 24 hours clock is represented by the shaded portion in figure.

The ratio of sleeping time to awaking time is ___

Q.

Question 1

Only one of the four options is correct. Write the correct one.

The ratio of 8 books to 20 books is

a) 2 : 5

b) 5 : 2

c) 4 : 5

d) 5 : 4

Q. Anil and Ajay on 5000 and 6000 respectively and spend 4500 each and save the rest find the ratio of the income the ratio of the saving the ration of anil income to his saving

Q. The ratio of the weight of a box to the weight of the car is 3 : 16. If the car weighs 1600 kg, find the weight of the box.

1. 300 kg
2. 400 kg
3. 600 kg
4. 1000 kg

Q.

There are 1800 students in a school. 800 choose football, 750 choose basketball and the remaining did not choose any game. A student can choose only one game. Find the ratio of the number of students who choose football to the number of students who did not choose any game.

1. 16:5

2. 16:20

3. 16:15

4. 250:800

Q. Ravi and Saurav share 55 chocolates in the ratio of 6 : 5. Find the ratio of chocolates between Ravi and Rajni, if Rajni has 20 chocolates.

1. 2 : 3
2. 5 : 6
3. 3 : 2
4. 6 : 5

Q. Ratio between two numbers, 6 and 11 can be represented as:

1. 6 : 11
2. 6.11
3. 6 to 11
4. a fraction of 6 over 11

Q. If $3x+4y:x+2y=9:4,$ then $3x+5y:3x-y$ is equal to -

1. $4:1$
2. $1:7$
3. $7:1$
4. $1:4$

Q. If x : y = 2 : 3, then find the ratio of 5x + 3y to 6x + 9y.

1. 1 : 3
2. 14 : 33
3. 3 : 1
4. 33 : 14

Q. What is the ratio of the smallest two digit number to the smallest four digit number?

1. 10 : 100
2. 100 : 1
3. 1 : 10
4. 1 : 100

Q. Two quantities A and B are in the ratio 4 : 7. If the smaller quantity is doubled and the larger quantity is halved, then new ratio will be .

1. 16 : 7
2. 15 : 7
3. 18 : 6

Q.

Write the fraction for the statement.

Salim ate three-fifth of a pizza.

Q. If 3A = 6B = 8C, then what is A : B : C ?

1. $\frac{1}{3}:\frac{1}{6}:\frac{1}{8}$
2. $\frac{1}{6}:\frac{1}{3}:\frac{1}{8}$
3. $\frac{1}{8}:\frac{1}{6}:\frac{1}{3}$
4. $\frac{1}{3}:\frac{1}{8}:\frac{1}{6}$

Q. Ana threw 5 pebbles in a pond out of 13 she had in her bag. This can be expressed as a .

1. rate
2. ratio
3. fraction