Secondary School (English Medium) (5 to 8) कक्षा ७ - CBSE Question Bank Solutions for Mathematics

Calculate the Mean, Median and Mode of the following data:

5, 10, 10, 12, 13.

Are these three equal?

Find the mean of the first ten even natural numbers.

The marks in a subject for 12 students are as follows:

31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29

For the given data, find the mean

The following are weights (in kg) of 12 people.

70, 62, 54, 57, 62, 84, 75, 59, 62, 65, 78, 60.

1. Find the mean of the weights of the people.
2. How many people weigh above the mean weight?
3. Find the range of the given data.

The following are weights (in kg) of 12 people. 70, 62, 54, 57, 62, 84, 75, 59, 62, 65, 78, 60. How many people weigh above the mean weight?

Find the mean of first six multiples of 4.

The mean of three numbers is 10. The mean of other four numbers is 12. Find the mean of all the numbers.

The angles between North and West and South and East are ______.

Angles which are both supplementary and vertically opposite are ______.

The angles x – 10° and 190° – x are ______.

If angle P and angle Q are supplementary and the measure of angle P is 60°, then the measure of angle Q is ______.

In the following figure, POR is a line. The value of a is ______.

The measure of an angle which is four times its supplement is ______.

If two supplementary angles are in the ratio 1 : 2, then the bigger angle is ______.

In the following figure, ∠AOC and ∠BOC form a pair of ______.

If an angle is 60° less than two times of its supplement, then the greater angle is ______.

If the sum of measures of two angles is 180°, then they are ______.

Two angles forming a ______ pair are supplementary.

The supplement of an acute is always ______ angle.

The supplement of a right angle is always ______ angle.