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2012 Math Kangaroo

Problem 6

Problem 6 · 2012 Math Kangaroo Easy
Arithmetic & Operations careful-counting

Mike and Jake play darts. Each of them throws three darts (see picture). Who won, and by how many points?

Figure for Math Kangaroo 2012 Problem 6
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Answer: E — Mike won. He had 4 points more.
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Hint 1 of 2
Read off the value of each ring the dart lands in, for both boys.
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Hint 2 of 2
Add each boy's three scores, then compare the totals.
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Approach: add each player's three darts and compare
  1. Mike's darts land on 25, 35 and 7, giving 25 + 35 + 7 = 67.
  2. Jake's darts land on 15, 45 and 3, giving 15 + 45 + 3 = 63.
  3. Mike scores 67 and Jake 63, so Mike wins by 67 - 63 = 4.
  4. The answer is Mike won by 4 (E).
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