Question

The mass of a box with 6 tennis balls is 2 kg 40 g. The same box with 10 tennis balls is 3 kg 160 g. What is the mass of the empty box?

Answer 1

well, the extra 4 balls added 3.160-2.040 = 1.12g

Now you know how much each ball weighs, so you can figure the mass of the box.

Answer 2

A box filled with 38 identical balls had a mass of 2.13kg.When 26 balls were removed, the total mass of the box and remaining balls was 0.96 Find the mass of the box when it was empty

Answer 3

Thanks