# Question Bank Solutions for CBSE Class 8 - CBSE - Mathematics

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State true or false.

Cube of any odd number is even.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

State true or false.

A perfect cube does not end with two zeroes.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

State true or false.

If square of a number ends with 5, then its cube ends with 25.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

State true or false

There is no perfect cube which ends with 8.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

State true or false.

The cube of a two digit number may be a three digit number.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

State true or false.

The cube of a two digit number may have seven or more digits.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

State true or false.

The cube of a single digit number may be a single digit number.

[0.07] Cubes and Cube Roots
Chapter: [0.07] Cubes and Cube Roots
Concept: Concept of Cube Number

For each of the given solid, the two views are given. Match for each solid the
corresponding top and front views.

[0.1] Visualizing Solid Shapes
Chapter: [0.1] Visualizing Solid Shapes
Concept: Views of 3D-shapes

A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger area?

[0.11] Mensuration
Chapter: [0.11] Mensuration
Concept: Introduction of Mensuration

Mrs. Kaushik has a square plot with the measurement as shown in the following figure. She wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of Rs 55 per m2.

[0.11] Mensuration
Chapter: [0.11] Mensuration
Concept: Introduction of Mensuration

The shape of a garden is rectangular in the middle and semi circular at the ends as shown in the diagram. Find the area and the perimeter of the garden [Length of rectangle is 20 − (3.5 + 3.5) metres]

[0.11] Mensuration
Chapter: [0.11] Mensuration
Concept: Introduction of Mensuration

A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 m2? (If required you can split the tiles in whatever way you want to fill up the corners).

[0.11] Mensuration
Chapter: [0.11] Mensuration
Concept: Introduction of Mensuration

An ant is moving around a few food pieces of different shapes scattered on the floor. For which food − piece would the ant have to take a longer round? Remember, circumference of a circle can be obtained by using the expression c = 2πr, where r is the radius of the circle.

[0.11] Mensuration
Chapter: [0.11] Mensuration
Concept: Introduction of Mensuration

Evaluate 3−2

[0.12] Exponents and Powers
Chapter: [0.12] Exponents and Powers
Concept: Powers with Negative Exponents

Evaluate (−4)−2

[0.12] Exponents and Powers
Chapter: [0.12] Exponents and Powers
Concept: Powers with Negative Exponents

Evaluate (1/2)^(-5)

[0.12] Exponents and Powers
Chapter: [0.12] Exponents and Powers
Concept: Powers with Negative Exponents

Find the value of m for which 5m ÷5−3 = 55.

[0.12] Exponents and Powers
Chapter: [0.12] Exponents and Powers
Concept: Powers with Negative Exponents

Evaluate  {(1/3)^(-1) - (1/4)^(-1)}^(-1)

[0.12] Exponents and Powers
Chapter: [0.12] Exponents and Powers
Concept: Powers with Negative Exponents

Evaluate (5/8)^(-7) xx (8/5)^(-4)

[0.12] Exponents and Powers
Chapter: [0.12] Exponents and Powers
Concept: Powers with Negative Exponents

For the given solid, the three views are given. Identify for each solid the corresponding top, front and side views.

 Object (i) (ii) (iii)

[0.1] Visualizing Solid Shapes
Chapter: [0.1] Visualizing Solid Shapes
Concept: Views of 3D-shapes
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