one case can hold 3 boxes.each box can hold 3 binders how many cases are needed to hold 126 binders?

Question

I need a solid answer

Answer 1

If each box holds 3 binders and 3 boxes are held in case then 9 binders are in a case.

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l                                     l   

l    ___     ___       ___     l

l    bbb     bbb       bbb     l

l                                     l 

⌊____________________⌋

So if you have 126 binders and each case holds 9 then you must divide 126/9.

126/9=14 cases