What is the increase in the volume of a

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

What is the increase in the volume of a cube of 1 unit edge if each of its edges is tripled?

Options:

27 cu units

29 cu units

26 cu units

28 cu units

Correct Answer:

26 cu units

Explanation:

We know that,

Volume of the cube = side³

We have,

Edge of cube = 1 unit

If edge of the cube became tripled ,

side = 3 × 1 = 3

Volume of the cube with edge tripled = (3)³ = 27

Now the increase in volume = 27 - 1 = 26