# Examples for 7th grade (seventh)

- Square s3

Calculate the diagonal of the square, where its area is 0.49 cm square. And also calculate its circumference. - Rails

18 m railway weighs 1260 kg. How much weighs 100 m of welded railways? - Average speed

What is the average speed you have to move the way around the world in 80 days? (Path along the equator, round to km/h). - Cube edge

Determine the edges of the cube when the surface is equal to 37.5 cm square. - Cube 5

The content area of one cube wall is 32 square centimeters. Determine the length of its edges, its surface and volume. - Unknown number 7

16% of the unknown number is by 21 less than unknown number itself. Determine the natural unknown number. - Three children

3 children eat 8 chocolates in 6 days. How many chocolates 6 children eat in 18 days? - Cancer

Of the 80 people 50 people ill cancer. What percentage of people isn't ill? - Runner 2

Marian run 12 meters in 8 seconds. How far would Marian run for 70 seconds, if still run at the same pace? - Raspberries

Dano had 20 raspberries. John had 90% more raspberries than Dano. Determine how many raspberries have Dano and Juraj together. - Unknown number 5

Daniel think an integer. When he change this number at a ratio of 2:5 he got number 2.8. Determine what number think Daniel. - Unknown number 6

Determine x if 1/6 of x is equal to 2/5 of the number 24. - Equation

Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number. - Volume and area

What is the volume of a cube which has area of 361 cm^{2}? - Cargo

Car with cargo weight 7610 kg. Weight of car is 23% of the total weight of car and cargo. How heavy is cargo? - Shots

Determine the percentage rate of keeper interventions if from 32 shots doesn't caught four shots. - Average speed

Michal went out of the house by car at speed 98 km/h. He came into the goal place for 270 minutes. Determine the distance between the two places. - Weightlifter

Weightlifter lifted 75% of its weight. Determine how much weight lifted when he weighs 132 kg. - Grass

Peter and Stano lawn grass for 3 hours 12 minutes. How long would it take to Peter if Stano lawn grass himself for 384 minutes. - Pedestrian

Dana started at 10:00 from the point A to point B. These points are distant 12 km. Determine how fast Daniel went when the place B arrived at 11:54. Speed express in km/h.

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