Question

THE LUNCH MENU AT KELLYS RESTURANT OFFERS 5 ENTEREES, 4 SALADS AND 3 DESSERTS. IF RICK ALWAYS ORDERS ONE OF EACH HOW MANY DAYS CAN HE EAT LUNCH AT THE RESTURANT WITHOUT REPEATING A MEAL?

Answer 1

we have that

The total possible outcomes are given by

(5)(4)(3)=60

therefore

The number of days is 60