Two small non conducting spheres have a total charge of 897

Question

Solve the all parts of given problem:

Problem: Two small non conducting spheres have a total charge of 89.7 µC. When placed 1.08 m apart, the force each exerts on the other is 11.8 N and is repulsive.

Part A: What is the (larger) charge on the spheres?

Part B: What is the (smaller) charge on the other sphere?

Part C: What if the force were attractive? What is the larger charge on one of the spheres?

Part D: What is the smaller charge on the sphere?

Please show all work and steps to determine the (smaller) charge on the other sphere.