# Examples for 7th grade (seventh)

1. Bob traveled Bob traveled 20 meters to Dave's house. He arrived in 3 minutes. What was his average speed for the trip.
2. Find x Solve: if 2(x-1)=14, then x= (solve an equation with one unknown)
3. The aquarium The aquarium has a capacity of 18 liters. What is its height when the square bottom is 8 2/3 cm long?
4. Unknown number I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12.
5. Donuts Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8
6. Employees Of all 360 employees, there are 11/12 women. How many men work in a company?
7. Gold horseshoe Calculate the volume of a gold horseshoe that weighs 750g.
8. Write 2 Write 791 thousandths as fraction in expanded form.
9. Motorcyclist From Trutnov, the motorcyclist started at an average speed of 60km/hour. At 12.30hrs the passenger car was started at a speed of 80km/hour. How many hours and at what distance from Trutnov will car catch a motorcycle?
10. Pound2kilos How many pounds make 1 kilograms?
11. The Mayflower The Mayflower traveled for 66 days on the trip from England to America. The weather was storming for many days of their trip. If one and a half of the days at Sea where Sunny with good weather, 1/6 of the days were sunny but very windy and the other days
12. Game 27 Susan wanted to play the game. In the beginning, the first says a number from 1 to 8. Then the second player adds a number from 1 to 5 and tells the sum. Again, the Susan adds a number from 1-5 and say sum and etc. . . The winner must say the number 27. W
13. Cube surface and volume Find the surface of the cube with a volume of 27 dm3.
14. Soup from canteen For how many people is 90 liters of soup enough if we assume 3/8 liter of soup per person in the canteen? Cris had 15000 . He spent 1/3 of his money on a table and the remaining on 5 similar chairs that cost the same. How much did one chair cost?
16. Paper box Calculate whether 11 dm² of paper is sufficient for gluing a box without a lid with bottom dimensions of 2 dm and 15 cm and 12 cm high. Write result as: 0 = No, 1 = Yes
17. Inlet and outlet The pool has a capacity of 50 hl. The inlet pipe flows in 1 minute 1.25 hl, and the waste pipe outlet is draining the full pool in 50 minutes. How long will take the empty the full pool when both the inlet and outlet are opened at the same time?
18. Soldier An experienced soldier digs a good trench in 30 hours. Two soldiers dug the same trench each 40 hours. How many hours will the ditch dig all three together?
19. Reservoir 3 How many cubic feet of water is stored in the reservoir that has a length of 200 feet, a width of 100 feet, an overflow depth of 32 feet, and a current water level of 24 feet?
20. The perimeter 2 The perimeter of the quadrilateral a = 1m b = 14/5m c = 2 3/10m d = 1 4/5m?

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