Question

125 small but identical cubes have been put together to form a large cube. How many such small cubes will be required to cover this large cube completely? Solution

Answer 1

Answer:

Step-by-step explanation:

Just Visualize it...

you've 5*5*5 cube..

so,if we want to cover it completely we've need to cover all the sides of it completely..

so just put same cubes over the one of the sides of it and then form both the sides we've to spread it just by one row..and so it will cover it properly..and do it for all the other sides..

so it'll become a cube of 7*7*7...

so now how much cubes we've..=(7*7*7)-(5*5*5)=218..that's it...

the answer is..218

if you still confused..just try it from smaller scale and visualize it..then you'll get an idea properly..

Answer 2

Answer:

218 is the answer

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