Question

The mass of a jar of beans is 525 g. If the jar has a mass of 25 g, what is the mass of the beans alone?

Answer 1

If the total mass consists of the mass of beams and the mass of the jar:
m(total) = m(beams) + m(jar)
Therefore, the mass of beams alone equals:
m(beams) = m(total) – m (jar) = 525 g – 25 g = 500 g