What is the increase in the volume of a cube of 1 unit edge if each of its edges is tripled?
Answer & explanation
Correct answer: option 3
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