Secondary School (English Medium) (5 to 8) Class 8 - CBSE Question Bank Solutions

A carpenter makes a box which has a volume of 13,400 cm³. The base has an area of 670 cm². What is the height of the box?

A truck carrying 7.8 m³ concrete arrives at a job site. A platform of width 5 m and height 2 m is being contructed at the site. Find the length of the platform, constructed from the amount of concrete on the truck?

A swimming pool is 200 m by 50 m and has an average depth of 2 m. By the end of a summer day, the water level drops by 2 cm. How many cubic metres of water is lost on the day?

How many bricks of size 22 cm × 10 cm × 7 cm are required to construct a wall 11 m long, 3.5 m high and 40 cm thick, if the cement and sand used in the construction occupy (1/10)^th part of the wall?

A birthday cake has two tiers as shown in the figure below. Find the volume of the cake.

Water flows from a tank with a rectangular base measuring 80 cm by 70 cm into another tank with a square base of side 60 cm. If the water in the first tank is 45 cm deep, how deep will it be in the second tank?

The relation between dependent and independent variables is shown through a ______.

The following figure RUNS is parallelogram. Find x and y. (Lengths are in cm) 

Draw a rough figure of a quadrilateral that is not a parallelogram but has exactly two opposite angles of equal measure.

All rhombuses are parallelograms.

Name the quadrilaterals whose diagonals are perpendicular bisectors of each other

List the outcomes you can see in this experiment.

Spinning a wheel

List the outcomes you can see in this experiment.

Tossing two coins together

When a die is thrown, list the outcomes of an event of getting a prime number.

When a die is thrown, list the outcome of an event of getting a number greater than 5.

Find the probability of the pointer stopping on D.

Find the probability of getting an ace from a well shuffled deck of 52 playing cards.

Find the probability of getting a red apple.

Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of.

1. Getting a number 6?
2. Getting a number less than 6?
3. Getting a number greater than 6?
4. Getting a 1-digit number?

If you have a spinning wheel with 3 green sectors, 1 blue sector and 1 red sector, what is the probability of getting a green sector? What is the probability of getting a non blue sector?