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Puzzle
Four students took a test where every question had two possible answers, A or B. Each question was worth 10 points, for a total of 100 points.
- US Version
The students' test results were posted as seen below, but the teacher forgot to tally Colin's score. Colin was heading to the teacher's office when Mary called him back, saying they could figure out his score using the results from the other tests. Can you figure out Colin's score?
- UK Version
The students' test results were posted as seen below, but the teacher forgot about John's score. John was heading to the teacher's office when Mary called him back, saying they can determine his score using the results from the other tests. Can you work out John's score?
Hints
Click a Tab to reveal the Hint.
Solution
Incorrect
Too bad!
You need to narrow down the conditions. This puzzle's a tough one.
Correct
A+!
- US Version
An A+ for you, that is. Unfortunately for Colin, his score was 60 points.
Based on the results from the three scored tests, you could come up with four possible answer keys, labeled here as A through D. No matter which one you use, Colin's score is 60!
- UK Version
An A+ for you, that is. Unfortunately for John, his score was 60 points.
Based on the results from the three scored tests, you could come up with four possible answer keys as shown. No matter which one you use, John's score is 60!
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A big thanks to http://professorlayton2walkthrough.blogspot.com