Consider the question. Kat decides she wants to start a boxing career. She gets a gym membership and spends 1 hour in the gym 3 times a week doing strength training. She also trained at the boxing gym 4 times a week for 1.5 hours. How many hours a week does she train?
 If the answer is '9'; explain the reasoning:
She strength trains 3 * 1 = 3 hours a week. She does boxing training 4 * 1.5 = 6 hours a week. So she trains a total of 3 + 6 = 9 hours a week.