Difference between revisions of "2017 AMC 12A Problems/Problem 3"
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==Solution== | ==Solution== | ||
| + | Taking the contrapositive of the statement If he got all of them right, he got an A yields If he didn't get an A, he didn't get all of them right, making the answer B. | ||
==See Also== | ==See Also== | ||
{{AMC12 box|year=2017|ab=A|num-b=2|num-a=4}} | {{AMC12 box|year=2017|ab=A|num-b=2|num-a=4}} | ||
Revision as of 15:25, 8 February 2017
Problem
Ms. Carroll promised that anyone who got all the multiple choice questions right on the upcoming exam would receive an A on the exam. Which on of these statements necessarily follows logically?
Solution
Taking the contrapositive of the statement If he got all of them right, he got an A yields If he didn't get an A, he didn't get all of them right, making the answer B.
See Also
| 2017 AMC 12A (Problems • Answer Key • Resources) | |
| Preceded by Problem 2 |
Followed by Problem 4 |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | |
| All AMC 12 Problems and Solutions | |
