University:
Shippensburg University of Pennsylvania
Course:
MAT 211 | Calculus I
Academic year:

2023
Views:

21

Pages:

1
Author:

J Robinson

Postcards Task. In a stop there are 10 kinds of postcards We want to send postcards to 5 friends. Suppose we want to send 2 different cards to each of there, and no two paple can receive the same kind of postcard. In how many different ways can this be done? Answer 1) For the first friend we can choose 2 different cards out of all 10 kinds, therefore there are." (10) ways to assign 2 different postcards to the first Friend 2) since no 2 people can obtain the same kind of postcard, for the second friend we selvet 2 postcards out of (10-2)=8 kinds. Thas, the number of ways and friend can obticion 2 cards is (2) 3) using the same logic and multiplication nill, we get: