Question 420775: Drawing: Arrows hitting a target. Target has two possible scores: 5 and 10.
Problem: "If three arrows are shot, and all the arrows hit the target, how many different total scores are possible?"
I'm trying to help my kid here. We can come up with 4 possible scores.
5-5-5, 5-5-10, 5-10-10, 10-10-10, 10-10-5, 10-5-5, 5-5-5, so you have four possible scores: 15, 20, 25 and 30.
4 answers are provided for multiple choice: 6, 9, 10 and 12.
He was told by his teacher that the correct answer is 10. 10 possible different total scores.
HELP!!!! Thank you!
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Drawing: Arrows hitting a target.
Target has two possible scores: 5 and 10.
Problem: "If three arrows are shot, and all the arrows hit the target, how many different total scores are possible?"
I'm trying to help my kid here. We can come up with 4 possible scores.
5-5-5, 5-5-10, 5-10-10, 10-10-10, 10-10-5, 10-5-5, 5-5-5, so you have four possible scores: 15, 20, 25 and 30.
4 answers are provided for multiple choice: 6, 9, 10 and 12.
He was told by his teacher that the correct answer is 10. 10 possible different total scores.
3 5s: 555 sum = 15
2 5s: 5,5,10 sum = 20
1 5s: 5,10,10 sum = 25
3 10s: 10,10,10 sum = 30
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Comment: The problem may have had a picture of the
target. There may have been a part of the target
that had no points associated with it.
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You would then also have
5,0,0 sum = 5
5,5,0 sum = 10
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But I don't see how there would be 10 different total scores.
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Cheers,
Stan H.
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