Practice question
Question
A cube whose two adjacent faces are coloured is cut into 64 identical small cubes. How many of these small cubes are not coloured at all?
Explanation
Two adjacent faces painted cover 16 plus 16 minus 4 overlapping edge cubes equals 28 painted small cubes. Subtracting from total 64 leaves 36 cubes untouched on any face. Formula total minus painted faces plus overlapping correction yields uncoloured count.
Related blogs
Guides and insights connected to this topic
Zoonotic Spillover in Bats: Causes, Consequences, and Future Preparedness
Bats: General Characteristics and Classification Bats are small mammals capable of true sustained flight. They belong to the second-largest...
STUDY OF COMPOUND MICROSCOPE
INTRODUCTION The word microscope is derived from two Greek words ‘micro’ meaning small and ‘scope” meaning to view. In other words a microsc...
Isolation of genomic DNA from fungi.
Introduction Fungal genomes are among the smallest genomes of eukaryotes. The sizes of fungal genomes range from less than 10 Mbp to hundred...
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.