You are trying to lose weight and add muscle mass before your next holiday. Your trainer said that to be successful, you must workout for an hour every other day. In your workout, you must commit to half an hour of weight training and half an hour of aerobic activity. This exact training regimen will give you the maximum benefits during your workout program. You decide that the weight training is tougher than you expected, so instead of working out for the full 30 minutes, you only weight train for 15 minutes and do aerobics for 30 minutes. Using the concept of marginal benefit and marginal cost, what will be the result of your workout decision