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

Can two angles be supplementary if both of them are acute?

Can two angles be supplementary if both of them are obtuse?

Can two angles be supplementary if both of them are right?

If two angles are supplementary, then the sum of their measures is _______.

A cricketer scores the following runs in eight innings:

58, 76, 40, 35, 46, 45, 0, 100

Find the mean score.

Following table shows the points of each player scored in four games:

Now answer the following questions:

1. Find the mean to determine A’s average number of points scored per game.
2. To find the mean number of points per game for C, would you divide the total points by 3 or by 4? Why?
3. B played in all the four games. How would you find the mean?
4. Who is the best performer?

The enrolment in a school during six consecutive years was as follows:

1555, 1670, 1750, 2013, 2540, 2820

Find the mean enrolment of the school for this period.

The mean is one of the numbers in a data.

The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9.

Construct the right angled ΔPQR, where m∠Q = 90°, QR = 8 cm and PR = 10 cm.

Construct a right-angled triangle whose hypotenuse is 6 cm long and one of the legs is 4 cm long

Construct an isosceles right-angled triangle ABC, where, m∠ACB = 90° and AC = 6 cm.

What cross-sections do you get when you give a vertical cut and horizontal cut to the given solids a brick.

What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a round apple.

What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a die.

What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a circular pipe.

What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a ice cream cone.

Two vessels contain 20 liters and 60 liters of milk respectively. What is the amount that each vessel would have if both share the milk equally?

Ashish studies for 4 hours, 5 hours, and 3 hours respectively on three consecutive days. How many hours does he study daily on average?