Observe the figure and complete the table.

Given:
Mass of ball A=20 kg
Mass of ball B=30 kg
Mass of ball C=60 kg
Formula Used:

where
F=Mutual force of attraction between two bodies
G=Universal Gravitational Constant=6.67×10^-11 Nm²/kg²
M=Mass of one body
m=Mass of other body
r=Distance between the bodies
Tip: We have to consider two attracting bodies at a time to calculate the mutual force between them.
For A and B,
For B and C,
For C and A,