Question
A box containing 45 notebooks had a mass of 3.29 kg. A box containing 20 post-it-pads has a mass of 4.19 kg. The mass of each post-it-pad was thrice that of each notebook. Find the mass of the empty box in grams.
4 m

Click button first when a symbol is required. X

A box containing 45 notebooks had a mass of 3.29 kg. A box containing 20 post-it-pads has a mass of 4.19 kg. The mass of each post-it-pad was thrice that of each notebook. Find the mass of the empty box in grams.