Math Olympiad 2

Pattern Problems( Week 30 Practice)

1. Observe the sequence of the following graph. How many dots in the missing part of the graph?

2. Observe the sequence of the following graph. How many dots in the missing part of the graph?

3. Tulips were planted so that they would bloom in the pattern of red, orange, yellow,red, orange, yellow,... What color is the 5th tulip? Please type your answer here (in lower case): . What color is the 9th tulip? Please type your answer here (in lower case): .

4. Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
686868886888688888688 ⇒

5. During the Christmas season, Anne decorates a fence with lights. There is one green light between two red lights. If there are 30 red lights in total, how many green lights are there?

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