You have a set of 8 cards, each of which has a letter on one side and a number on the other side. Somebody makes the following claim: If a card has a vowel, then the number on the other side is odd. Here's the set of cards: 7 1 A 4 M 3 2 B   How many cards do you at a minimum need to turn over to verify the claim?

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.7: Introduction To Coding Theory (optional)
Problem 7E
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You have a set of 8 cards, each of which has a letter on one side and a number on the other side. Somebody makes the following claim:

If a card has a vowel, then the number on the other side is odd.

Here's the set of cards:

7 1 A 4 M 3 2 B

 

How many cards do you at a minimum need to turn over to verify the claim?

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