10th Class Mental Ability Cube and Dice Question Bank Cubes and Dice

Directions: A cube is colored red on two opposite faces, blue on two adjacent faces and yellow on two remaining faces. It is then cut into two halves along the plane parallel to the red faces. One piece is then cut into four equal cubes and the other one into 32 equal cubes.

How many cubes have at least one face painted blue?

A) 4

B) 14

C) 17

D)        20

Correct Answer: D

Solution :

Twenty cubes including four bigger cubes have at least one face painted blue.