Problem Solving Question #1

These series of questions target on students’ abilities to solve it. They are common questions used in job interviews and interviewers are more interested in learning how the interviewee derive the answer, instead of the answer itself. So do feel free to share your method of solving the problem. Remember, we are interested in how you solve it. 🙂

Credits: mathspig.wordpress.com

Credits: mathspig.wordpress.com

A CUBE, which has sides 10m, is built by smaller cubes which has sides 1m. In other words, the CUBE is made up of 1000 smaller cubes. If I were to remove the external layer of 1m from each face of the CUBE, how many smaller cubes would I have removed?

Ans: 488

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