If you rolled a dice 24 times, how many times would you expect to roll a six?

Well, a dice has usually 6 sides only (though there are ones with more)
Assuming it has 6 sides, and if you rolled it 24 times, logic would expect you to land on each side about 4 times. 
So, you would roll a 6 four times.

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared

Provide an equation