# Examples for 7th grade (seventh)

#### Number of examples found: 1974

• Class The class has 18 students. Everyone knows inline skating or skateboarding. Inline skating can ride 11 students on a skateboard 10. How many ride on inline skates and on skateboard?
• Brothers and sisters Lenka has as many brothers as sisters. Her brothers have twice as many sisters as brothers. How many brothers and sisters are in the family?
• Ethnicity Share of ethnicity XY is 26%, which is 1/9 more than in the prewar period. What was the share of that ethnicity in the pre-war period?
• Trapezoid ABCD Calculate the perimeter of trapezoid ABCD if we know the side c=15, b=19 which is also a height and side d=20.
• Saving Allen save € 2860 to buy a car. Yet it lacks save 55% of the car price. How much is the car?
• Compass What angle are between directions WSW (WestSouthWest) and SSE (SouthSouthEast) on the compass?
• Disjoint How many elements have union and intersection of two disjoint sets when the first have 1 and secodn 8 elements.
• Barrel of oil Barrel of oil weighs 283 kg. When it mold 26% oil, weighed 216 kg. What is the mass of the empty barrel?
• Cardboard How many m2 of cardboard are needed to make the cuboid with dimensions 40 cm 60 cm and 20 cm?
• Photo enlarge Mark wants to enlarge a 4-inch by 6-inch photo so that it has a height of 15inches. Use a ratio table to determine the new width of the photo.
• Cylinder twice If the radius of the cylinder increases twice, and the height is reduced twice, then the volume of the cylinder increases (how many times?):
• Bricklayers 8 bricklayers build a house for 630 days. How many bricklayers have to add after 150 days, so then the whole building completed in (next) 320 days?
• Scale of the map Determine the scale of the map, which is the actual distance of 120 km l represented by segment long 6 cm.
• Lunch Jane eats whole lunch for the 30 minutes. Which part of the lunch is eaten in 180 seconds?
• Unknown integer Find the smallest integer that: divided by 2, the remainder is 1 divided by 3 the remainder is 2, divided by 4 remainder is 3, ... divided by eight reminder is 7, by 9 reminder is 8.
• Areaf of ST It is given square DBLK with side |BL|=13. Calculate area of triangle DKU if vertex U lie on line LB.
• QuizQ An isosceles triangle has two sides of length 7 km and 39 km. How long is a third side?
• Squaring the Circle Calculating side of the square with the same area as the circle of radius 18.
• Extreme temperatures USA hit extreme heat wave. Calculate percentage of the air temperature change from normal summer temperature 23 °C to 40 °C.
• Triangle angles The angles α, β, γ in triangle ABC are in the ratio 6:2:6. Calculate size of angles.

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