question_answer

Directions: A cubic wood have been painted with golden colour and then cut and subdivided into 27 equal cubes. Now, answer the following questions.

How many cubes are there which have their three face coloured with golden colour?

A) 4                                 

B) 8

C) 6                                 

D) 27

Correct Answer: B

Solution :

Shortcut: After cutting any cube in small cubes. Always corner cubes are painted with three faces. [Note: A cube have a 8 corners]