1) Old Man Wrinkle spent one-fourth of his life as a boy, one-eighth as a youth, and one-half as an active man. If Man Wrinkle spent his remaining 8 years as an old man, how many years did he spend as an active man?
2) Mr. Brown has 8 black gloves and 8 brown gloves in his closet. He blindly picks up some gloves from the closet. What is the minimum number of gloves Mr. Brown will have to pick to be certain to find a pair of gloves of the same color?
3) Last weekend, I went to play in the nearby park. It was really fun! I rode my new bicycle that Mom had given me for my birthday. On reaching the park, I saw that there was now a total of 20 bicycles and tricycles. If the total number of wheels was 50, how many tricycles were there?
Try to solve them each using two different methods (e.g. guess and check, drawing a picture, using symbolic representation / algebra, using verbal reasoning, using a formula, or any others you can think of). If you get different answers, check what you did. If you try or think of any other methods, post them here too!
Try to solve them each using two different methods (e.g. guess and check, drawing a picture, using symbolic representation / algebra, using verbal reasoning, using a formula, or any others you can think of). If you get different answers, check what you did. If you try or think of any other methods, post them here too!
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