1) A resturant is offering daily special entree with selection of 1 appetizer, 1 side dish and 1 desert. There are 4 appetizers, 5 side dishes and 2 deserts on the menu.
a) In how many ways can a customer select an appetizer, a side dish and a desert?
b) In how may ways a customer can place his order, if he may choose to option out appetizer , side dish or desert?
2) In how many ways can three boys and three girls be seated in row , if boys are required to seat in the alternate chairs?
3) In how many ways can three boys and three girls be seated in row so that at most two boys can sit together?