What happens to the force between two charges if the magnitude of both are reduced by half?

What happens to the force between two charges if the magnitude of both are reduced by half?
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If there were two positive charges, one of 0.1 coulomb and the second of 0.2 coulomb, they would repel each other with a force that depends on the product 0.2 × 0.1. Thus, if each of the charges were reduced by one-half, the repulsion would be reduced to one-quarter of its former value.
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