Math Olympiad 4( Week 36 Quiz 7) 1. Determine which of the following number(s) are divisible by 9. Type the number(s) in the blank, and separate each number with a comma if necessary.| | 81 | 616 | 2830 | 76342 | 155702 | 5548139 |
4. X and Y are positive integers and X is larger than Y. If the remainder of (X ÷ Y) is 3, what is the smallest possible dividend X? 5. Maple trees planted around a square garden are one meter apart. There are 56 maple trees in total with a tree at each corner. What is the length of each side of the garden (in meters)? 6. What is the multiple of 11 between 800 and 899 inclusively with the largest digits sum? 7. Hillary is 8 times the age of Rene who is 3 years older than Laura. If the total age of the three is 47, how old is Laura? 8. Mary is 5 times the age of Richard who is 5 years younger than Julia. If the total age of the three is 54, how old is Julia? 9. The perimeter of a square is 44 inches. What is its area (in square inches)? 10. Anne is 4 times as old as Larry was 3 years ago. Anne will be 15 years old after 3 years. How old is Larry this year? 11. The circumference of a tire is 81 inches. How many complete turns will the tire roll in one mile (1 mile = 63,360 inches) on the ground? 12. If you cut a square (6 × 6) into half, what is the smallest possible sum for the perimeters of the two halves? 13. Laura has a total of 11 $5 and $100 bills with a total value of $625. How many $100 bills does Laura have? 14. Niconia has a total of 12 $20 and $50 bills with a total value of $450. How many $50 bills does Niconia have? 15. Emily has a total of 11 $20 and $100 bills with a total value of $460. How many $100 bills does Emily have? |