Average Problems( Week 9 Evaluation) 1. What is the natural number comes exactly in the middle between 7 and 15? 2. There will be a canoe race. The blue team has 5 canoes. The yellow team has 7 canoes. The green team has 6 canoes. What is the average number of the canoes in a team? 3. A sheep pen holds 13 sheep and another sheep pen holds 1 sheep. To make each sheep pen hold the same number of sheep, how many sheep need to be moved from one sheep pen to the other sheep pen? 4. Helen is 12 years old, and Smith is 20 years old. How old will Smith be when Helen is 32 years old? 5. What is the number with the same distance from 0 and 1472? 6. Niconia has 65 marbles, and Jessica has 43 marbles. How many marbles does Niconia need to give Jessica so that each of them has the same number of the marbles? 7. There were 7 boys with the heights of 46 inches, 49 inches, 52 inches, 55 inches, 58 inches, 61 inches, and 64 inches respectively. What is their average height in inches? 8. A book shelf has four layers. There are 77 books on the first layer. There are a total of 66 books on the second and third layer. There are 49 books in the fourth layer. How many books are there in average on a layer of the shelf? 9. A 12-hour clock chimes once at 1:00, twice at 2:00, three times at 3:00, etc. How many times does the clock chime altogether in one 24-hour period? 10. Find the sum of 1 + 2 + 3 + 4 + ... + 49 + 50 =? |