Easy, 100 x 3 is 300 pounds, 5 x 3 is 15, so 15 pounds. :)
I do not know how to show the working out but its 4+6+6
V=LWH
h=10
V=360
360=LW10
divide both sides by 10
36=LW
try some values
ok so if we get L=1 and W=36, that is the same box as L=36 and W=1
so
L,W
36,1
18,2
12,3
9,4
6,6
5 of them
answer is 5 different boxes
dunno what the 'compare volume' is
5 pencils cost $.80. Each pencil costs $0.16
Then divide $0.16 into $0.40
This equals 2.5 pencils, you can't buy half a pencil
(125 km) x (1mile / 1.609344 km) = <em>77.6714 miles</em> (rounded)
