Chapter 12 – Ratio and Proportion

If the cost of 1 dozen apples is Rs. 36 then the cost of 36 apples is :

The mean proportion of 4 and 16 is

In a class, there are 20 boys and 40 girls. What is the ratio of the number of boys to the number of girls?

Ratio of 200 ml to 4 1 is :

There are 45 persons working in an office. If the number of females is 25 and the remaining are males, find the ratio of the number of females to number of males.

7 : 12 is equivalent to :

The length and width of a tape are 2 m and 28 cm. What is their ratio?

Ratio of 1.6 kg to 200 gm is :

What is the simplest form of the ratio 144:28?

Ratio of 50 g to 4 kg is :

It 3, 18, x, 42 are in proportion then the value of x is :

Ratio of 1.2 m to 20 cm is :

Fill in the box so that the three numbers,32 and 64 are in proportion.

Find the mean proportion of 25:10::10:4.

Cost of 11 mangoes is Rs. 55 then the cost of 5 mangoes is :

If 12, 14, 9 and x are in proportion then Ênd the value of x.

12, 21, 72, 126 are in proportion then :

The first, second and the third terms of a proportion are 5, 120 and 40. What is the fourth term?

Ratio of 1 hour to 300 seconds is :

Length of a room is 30 m and its breadth is 20 m. Find the ratio of length of the room to the breadth of the room.

In a cricket coaching camp, 1200 children are trained out of which 900 are selected for various matches. What is the ratio of non-selected children to the total number of children?

The ratio 35 : 84 in the simplest form is :

If the cost of 6 cans of juice is Rs 210, then what will be the cost of 4 cans of juice?

In 4:7::16:28, 7 and 16 are called :

If x : y : : y : z, identify the correct statement from among the following.

In a class there are 25 boys and 35 girls. The ratio of boys to girls is :

If 8, 18, 18 are x in proportion then find the value of x.

6 : 4 is equivalent ratio of ______.

Find the ratio of 81 to 108.

If a pack of 10 pens costs Rs. 25 then the cost of 36 pens is :

If 49, 35, x and 25 are in proportion then Ênd the value of x.

Ratio of one hour to 60 minutes is :

Which of the following is a proportion?

Ratio of 32 to 60 is :

If 4, 5, 8, x are in proportion then the value of x is :

The mean proportion of 9 and 16 is

Ratio of 5 minutes to 40 seconds is :

If 5, 30, 3 and x are in proportion then find the value of x.

What is the value of x if 6, 12, x are in proportion?

Identify the ratio of 4 seconds and \(\frac{1}{4}\) minute from the following.

What are the extremes of the proportion 9:3::36:12?

Divide 20 pens between Sheela and Sangeeta in the ratio of 3:2.

If x, 24, 30 and 16 are in proportion then find the value of x.

If 5 : 4 : : 35 : x then value of x is :