List of top Mathematics Questions asked in CBSE Class VIII

Arun bought a pair of skates at a sale where the discount given was \(20\) %. If the amount he pays is \(Rs\) \(1,600,\) find the marked price.
The price of a TV is \(Rs\) \(13,000\). The sales tax charged on it is at the rate of \(12\) %. Find the amount that Vinod will have to pay if he buys it.

Diameter of cylinder A is 7 cm, and the height is 14 cm. Diameter of cylinder B is 14 cm and height is 7 cm. Without doing any calculations can you suggest whose volume is greater Verify it by finding the volume of both the cylinders. Check whether the cylinder with greater volume also has greater surface area.
Diameter of cylinder

During a sale, a shop offered a discount of \(10\) % on the marked prices of all the items. What would a customer have to pay for a pair of jeans marked at Rs \(1450\) and two shirts marked at Rs \(850\) each?
If \(60\) % people in city like cricket, \(30\) % like football and the remaining like other games, then what per cent of the people like other games? If the total number of people are \(50\) lakh, find the exact number who like each type of game.
If Chameli had Rs \(600\) left after spending \(75\) % of her money, how much did she have in the beginning?
Given a cylindrical tank, in which situation will you find surface area and in which situation volume. 
(a) To find how much it can hold 
(b) Number of cement bags required to plaster it
(c) To find the number of smaller tanks that can be filled with water from it.
A football team won \(10\) matches out of the total number of matches they played. If their win percentage was \(40\), then how many matches did they play in all?
\(72\) % of \(25\) students are good in mathematics. How many are not good in mathematics?
A company packages its milk powder in cylindrical container whose base has a diameter of 14 cm and height 20 cm. Company places a label around the surface of the container (as shown in the figure). If the label is placed 2 cm from top and bottom, what is the area of the label.
milk powder in cylindrical container
The product of two rational numbers is always a ___.
Tell what property allows you to compute \(\frac{1}{3}×(6×\frac{4}{3}) \,as \,(\frac{1}{3}×6)×\frac{4}{3}\).
Convert the following ratios to percentages. 
  1. \(3:4 \)
  2. \(2:3\)

Name the property under multiplication used in each of the following. 

(i)\(\frac{-4}{5}×1=1×\frac{-4}{5}=-\frac{4}{5} \)

(ii) \(-\frac{13}{17}×\frac{-2}{7}=\frac{-2}{7}×\frac{-13}{17}\)

(iii) \(\frac{-19}{29}×\frac{29}{-19}=1.\)

The lateral surface area of a hollow cylinder is 4224 cm2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet.
Find the ratio of the following: 
  1. Speed of a cycle \(15\) km per hour to the speed of scooter \(30\) km per hour. 
  2. \(5\) m to \(10\) km 
  3. \(50\) paise to Rs \(5\)
Describe how the two figures at the right are alike and how they are different. Which box has larger lateral surface area?
box
Find the side of a cube whose surface area is 600 cm2.
There are two cuboidal boxes as shown in the adjoining figure. Which box requires the lesser amount of material to make?
two cuboidal boxes
Diagram of the adjacent picture frame has outer dimensions = 24 cm x 28 cm and inner dimensions 16 cm x 20 cm. Find the area of each section of the frame, if the width of each section is same.
section of frame
There is a pentagonal shaped park as shown in the figure.
pentagonal shaped park
For finding its area Jyoti and Kavita divided it in two different ways. Find the area of this park using both ways. Can you suggest some other way of finding its area?
Find the least number which must be subtracted from each of the following numbers so as to get a perfect square. Also find the square root of the perfect square so obtained. 
  1. 402 
  2.  1989 
  3.  3250 
  4.  825 
  5.  4000
Mohan wants to buy a trapezium shaped field. Its side along the river is parallel to and twice the side along the road. It the area of this field is 10500 m2 and the perpendicular distance between the two parallel sides is 100 m, find the length of the side along the river.
trapezium shaped field
Find the square root of the following decimal numbers. 
  1.  2.56 
  2.  7.29 
  3.  51.84 
  4.  42.25 
  5.  31.36
The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor, if the cost per m2 is Rs 4.