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Washington State Math Olympiad
Hints and Solutions
2016 Grade 7 Number Sense
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| Problem |
1) Find the 100th term in this sequence:
1, 5, 4, 8, 7, 11, etc
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2) If you insert three numbers between 1/6 and 1 to form an arithmetic sequence (i.e., values
evenly spaced), what would the sum of this sequence?
(Express your answer as a mixed number)
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3) Liz is making cupcakes for a charity event. She decides that every 3rd cupcake will have
chocolate frosting, every 4th cupcake will have sprinkles, every 5th cupcake will use colored
batter, and every 6th cupcake will be topped with a cherry. If Liz makes 80 cupcakes, how many
will have none of these additions?
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