Topic: Finding Orders

Today we learned about orders, and how to find then from clues. The strategies we used include:

• Draw a line, and label the positions 1, 2, 3, 4, ..., and then:
• put person's name at the position if you know it, 
• and you can also determine if the person should be put to the left or right depending on in the information given in the problem
• Also, we can use 'exclusion' method. For example, when the question asks for who is the oldest person, you can start by excluding the person that is not the oldest. If there is only one person left at the end, that is the answer.

Homework

1. Basil attached five stickers with the digits 1, 2, 3, 4, 5 in some order on a sheet of paper as shown in the picture.

In what order could Basil have put the stickers? 1-2, 5pt

(A) 1, 2, 3, 4, 5 (B) 4, 5, 2, 1, 3 (C) 5, 4, 3, 2, 1 (D) 2, 3, 4, 1, 5 (E) 4, 1, 3, 2, 5

2. Anne, Clara, Michael and Dan had an apple eating contest. Dan ate more apples than Clara, and Michael ate fewer apples than Anne. We also know that Dan did not win the contest. Who ate the most apples?

A) Anne        B) Clara   C) Michael     D) We cannot know.