A basket with 25 similar ball has a mass of 10.3kg. the same basket with 10 similar balls has a mass of 4.45 kg. What is the mass of the box? Give your answer in grams

Answer: 550g

Step-by-step explanation:

mass of ball in kg=y

mass of basket in kg=x

25y+x=10.3 - > (01)

10y+x=4.45 - > (02)

(01) - (02)

25y+x-10y-x=10.3-4.45

15y=5.85

y=0.39

substitute y=0.39 in (02)

10 (0.39) + x=4.45

3.9+x=4.45

x=4.45-3.9

x=0.55

Therefore mass of basket is 550g.