Answer: increase the number of B consumed and decrease the number of A consumed.
Explanation: Marginal utility could be explained as the additional or extra satisfaction or benefit derived from the consumption of more moreover unit of a particular good rate service.
Marginal utility of per dollar spent on good A = 0.6
Marginal utility per dollar spent on good B = 1.0
Therefore, to increase utility with the same amount of money, Paul should increase the number of B consumed, as it has a greater utility per dollar coefficient than consumption of good A which has a lower Marginal utility coefficient.