What topic does this come under so I can research on it
Answer:
say sorry but your not sory
18 boxes of nails weighs 49.5 kg
So one box weighs 49.5/18=2.75 kg
Therefore each box weighs 2.75 kg
That means each box weighs 2 wholes and 3 by 4
Haulm or per :) hope this helps :)
