Give Sample problem in law of universal gravity?

Case2. Find the mass of one object if the magnitude of the gravitational force acting on each particle is 2 x 10-8, the one mass is 25 kg and the objects are 1.2 meters apart

F = 2 x 10-8, m2 = 25 kg, r = 1.2 m, G = 6.6726 x 10-11N-m2/kg2.

Step 1: Substitute the values in the below Mass formula: