# A right prism has a square base with side of base 4 cm and the height

| A right prism has a square base with side of base 4 cm and the height of prism is 9 cm. The prism is cut in three parts of equal heights by two planes parallel to its base. What is the ratio of the volume of the top, middle and the bottom part respectively?

A. 1 : 8 : 27

B. 1 : 1 : 1

C. 1 : 8 : 20

D. 1 : 7 : 20

### Right Answer is: B

#### SOLUTION

Since we are talking about the prism, the volume of prism is linearly dependent on the height of the prism.

So, when the prism is cut into 3 equal parts along its height, it is divided into equal volume.

Therefore, the respective ratio of the three parts are 1:1:1

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A right prism has a square base with side of base 4 cm and the height