646楼james
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发表于 2006-7-28 14:01
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13. The volume of a box is 24 cubic inches. If its length is 3 inches and its width is 8 inches, what is its depth?
14. One third the sum of 13 and a certain number is the same as one more than twice the number. Find the number.
15. Tom has a brother one third his age and a sister three times his age. If the combined ages of all three children is five less than twice the oldest, how old is Tom?
16. A woman leaves one fourth of her estate to her son and one third of her estate to her daughter. If she leaves the balance of $1,000.00 to charity, how large was her estate in dollars?
17. A woman buys a pound of steak for $3.00. If the meat loses one fourth of its weight when cooked, what is the cost in dollars per pound when it is served at the table?
18. A gas tank that is 1/3 full requires 6 gallons to make it 5/6 full. What is the capacity of the tank in gallons?
19. The sum of five consecutive odd integers exceeds three times the largest by 6. Find the sum of the integers.
20. Ten houses line one side of a street. The average space between houses is 60 feet more than the average width of each house. A sidewalk starts 60 feet before the first house and ends 60 feet after the last house. If the total length of the side walk is 3,206 feet, find the average width of each house in feet..