#4   Sam wants to go to the store on Monday, from 1PM - 4PM. If Sam can't go to the store on Monday she will go on Tuesday, from 10AM - 3:30 in the afternoon. If she can go both days how many hours is she at the store.


Fascinating Fact:  A shopper who first purchases something on his or her shopping list is more likely to buy unrelated items later as a kind of reward.