# Examples for 7th grade (seventh)

#### Number of examples found: 1974

• Rectangles How many rectangles with area 8713 cm2 whose sides is natural numbers are?
• Turtles 2 A box turtle hibernates in the sand at 11 5/8. A spotted turtle hibernates at 11 16/25 feet. Which turtle is deeper?
• Seven Seven friends agree to send everyone a holiday card. How many postcards were sent?
• Perimeter to area Calculate the area of a circle with the perimeter 15 meters.
• Copper plate Calculate the thickness of the copper plate with a density 8.7 g/cm³ measuring 1.5 meters and 80 cm and its weight is 3.65 kg
• Cakes Grandmother baked cakes. Half of its was poppy, quarter with plum jam and 16 cheesecakes. How many cakes she baked in total?
• One-third A one-third of unknown number is equal to five times as great as the difference of the same unknown number and number 28. Determine the unknown number.
• Sales stores The first sales store passed the 1/3 and the second 2/5 of the total amount of goods.In third store passed the 2/3 rest of the goods. The remaining 40 kg of goods put into fourth store. How many kilograms of goods pass to a third store?
• Round table Round table with diameter d = 105 cm is coated by square tablecloth with a side length 121 cm. About how many cm is higher center of tablecloth than its cornes?
• Hostel Students are accommodated in 22 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 106 children there?
• Quarter circular The wire that is hooked around the perimeter of quarter-circular arc has length 3π+12. Determine the radius of circle arc.
• Elections The elections attended a total 4818 voters. First day 39 men more than women, the second day 21 women more than men. How many women attended elections?
• 3-bracket 3 Two angles in a triangle are 90° and 60°. Has triangle at least two equal sides?
• Megapascals What is the area of crosssection of the piston, if the force of 300 kN produces a pressure of 5 MPa?
• Algebrogram Solve algebrogram: mama+anna=vari How many solutions are?
• Rails 18 m railway weighs 1260 kg. How much weighs 100 m of welded railways?
• Floor Rectangular floor of living room has a length 5.4 meters and a circumference 17.2 meters. What is its width?
• Beer permille In the 5 kg of blood of adult human after three 10° beers consumed shortly after another is 6.6 g of the alcohol. How much is it as per mille?
• Workers 2 Worker dug the trench for 7 hours, another worker for 10 hours. They recruited to work even one worker more. Digging should be done for 2 hours. For how long would dig third worker alone?
• Divisibility by 12 Replace the letters A and B by digits so that the resulting number x is divisible by twelve /find all options/. x = 2A3B How many are the overall solutions?

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