Math Olympiad 3( Week 15 Quiz 3) 1. Richard, Ed, and Ben had a running race. It took Richard 5 seconds to finish the distance. It took Ed 1 more second than Richard to finish the same distance. It took Ben 4 more seconds than Ed to finish the same distance. How many seconds did Ben take to finish the distance? 2. There are four horses. It will take the 1st horse 9 minutes to cross the grassland. It will take the 2nd horse 6 minutes to cross the grassland. It will take the 3rd horse 6 minutes to cross the grassland. It will take the 4th horse 6 minutes to cross the grassland. How long (in minutes) will it take for all four horses to cross the grassland? 3. What fraction is represented by the shaded circle below?
4. 4 children are roasting marshmallows. Each child has 5 marshmallows on a stick. How many marshmallows are there in total? 5. Larry earns his allowance by tutoring his younger sister. He earns 1 dollar for each hour. If he wants to earn 9 dollars to buy a new gameboy software within a week, how many hours will he need to work for the week? 6. The students sold flowers to raise money for their club. Each rose was sold for two dollars and each marigold was sold for one dollar. A total of 8 roses and 6 marigolds were sold. How many dollars did they raise? 7. 3 hens can lay 3 eggs in 3 days. At this rate, how many hens can lay 45 eggs in 45 days? 8. Jennifer's watch is 8 minutes faster than Ed's watch. Ed's watch is 3 minutes slower than Richard. What time is it on the Jennifer's watch if Richard's watch is at 12:29? Express the time as HH::MM, such as 10:50. 9. Eric had 7 apples and Helen had 4 times as many as Eric. How many apples did Helen have? 10. Josh solves 4 problems every day. How many problems will he solve in 4 days? 11. How many faces are there in the pyramid below? 12. Temperature in a town changed wildly during the day. The temperature in the early morning was still 3 degrees above zero. By 9:00 A.M. it had dropped 14 degrees. From then to noon, the temperature though rose a total of 9 degrees. Over the next two hours, the temperature rose to the highest temperature of the day with another 9 degrees increase. What is the highest temperature of the day? 13. How many different line segments can you count in the following figure? 14. What fraction is represented by the shaded square below?
15. How many triangles can you count in the figure below?
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