# CBSE Maths Extra Questions Class 8

CBSE Maths Class 8 Extra Questions help students understand Maths concepts efficiently. The extra questions for CBSE Class 8 Maths are given here in order to help students prepare well and score good marks in the annual examination. These questions come from all the important topics of the Class 8 Maths curriculum, and it is advisable to solve them on a regular basis.

## Importance ofÂ  CBSE Extra Questions in Class 8 Maths

• The extra questions are given in a precise manner and will help students practise the Maths chapters easily.
• Students are recommended to solve these questions after reading all the chapters in the textbook to avail excellent benefits.
• CBSE Extra Questions consist of questions which can be expected in the upcoming final exams.
• These questions adhere to the latest syllabus.
• It is also advisable for teachers to assist students in solving the given questions.

Students can view the given CBSE Class 8 extra questions of Maths below:

1. If 9 is the divisor of 21y5, find y.
2. Plot a point (5, 4) on a graph and find out if it is similar to (4, 5).
3. Divide the polynomial
$$\begin{array}{l}(6x^{2}-5x)\div 2x\end{array}$$
with the monomial 2x.
4. If a wall is getting built in 48 hours by 14 workers, how many workers will finish the wall in 30 hours?
5. Find the value of p for which
$$\begin{array}{l}6^{p}\div 6^{-2}=6^{6}\end{array}$$
.
6. Find the total cost of polishing the floor if the cost per square metre is Rs. 5 and if the floor of the building consists of 4000 tiles, which are rhombus-shaped, and each of its diagonals is 35 cm and 20 cm in length.
7. Explain with a graphical representation, if needed, if a polyhedron can exist of 10 faces, 15 vertices and 20 edges.
8. Find the area and perimeter of triangles with the dimensions given in the ratio of monomials as (p,q);(10m,5n);(
$$\begin{array}{l}20x^{2},5y^{2}\end{array}$$
);(4x,
$$\begin{array}{l}3x^{2}\end{array}$$
);(3mn,4np).
9. Liverpool won 20 matches out of the total in the English Premier League. If their winning % was 40, then find the total number of matches played by Liverpool.
10. In a bag containing 5 red balls and 6 blue balls, find out the probability of getting a blue ball while drawing.
11. Draw a Square READ with Diagonal DE = 5 cm.
12. Explain the reason behind the rectangle being a convex quadrilateral.
13. The denominator of a rational number is 8 value greater than its numerator, and if increased by 17 and the denominator is decreased by 2, the number obtained after this is 3/2. Find the rational number.
14. If the angles of a quadrilateral are in the ratio of 2:3:5:8, then what is the measure of each angle?
15. Given that there are 24% of boys in a school and the number of girls is 456, then what is the total number of students in the school?
16. Â If a train travels 112 km in 1 hour 30 minutes with a certain speed, calculate the kilometres it will travel in 4 hours 45 minutes with the same speed.

Solving the given CBSE Class 8 Maths extra questions daily will be helpful for students to ace the CBSE annual exams.