Determining Favorite Fruits Strategy

Determining Favorite Fruits Strategy

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial guides viewers through solving a problem inspired by the International Math Olympiad. It begins with an introduction to the problem, where Bob's favorite fruit must be identified using strategic questioning. The tutorial explores problem-solving strategies, analyzes possible responses from Bob, and concludes with a solution. The problem is linked to a similar IMO problem, encouraging viewers to try it independently.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the recommended minimum time to attempt the problem on your own?

15 minutes

5 minutes

30 minutes

45 minutes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the condition under which Bob can lie?

Bob cannot lie at all

Bob can lie but not twice in a row

Bob can lie only once

Bob can lie any number of times

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first problem-solving strategy mentioned?

Ignoring the problem

Guessing the answer

Playing around with the problem

Asking for help

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does Alice denote an empty basket?

By using a specific symbol

By leaving it blank

By drawing a circle

By writing 'empty'

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should Alice do if Bob says 'yes' to both apple and banana?

Conclude his favorite is banana

Conclude his favorite is not orange

Conclude his favorite is apple

Conclude his favorite is orange

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of asking Bob the same question twice?

To waste time

To confirm Bob's favorite fruit

To catch Bob in a lie

To confuse Bob

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many questions does Alice need to determine Bob's favorite fruit?

Five or less

Six or more

Exactly three

More than ten

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which international competition is mentioned in connection with the problem?

International Biology Olympiad

International Physics Olympiad

International Math Olympiad

International Chemistry Olympiad