Answer:
The correct answer is 16 utils.
Step-by-step explanation:
Amount spent by Rick to get utility of 8 = $6*2 + $3 * 4 = $24
$48/ $24 = 2
$48 will give Rick 2 sets of products combination that give him utility of 8.
At his utility-maximizing point, Rick's utility is 2* 8 = 16 utils.