# Examples for 6th grade (the sixth graders) - page 29

- Glass door

What is the weight of glass door panel 5 mm thick height 2.1 meters and a width of 65 cm and 1 cubic dm of glass weighs 2.5 kg? - Simple equation 2

Find X in this simple equation: X/9 = 96/108 - Gasoline consumption Skoda MB

Consumption of cars for 100 km is 6.6 liters of gasoline 1 liter of gasoline costs € 1.274. How many euro grandfather spent when the car travelled 321 km. - Concrete pedestal

The carpenters made wooden mold on a concrete pedestal in the shape of a cube with edge 2 meter long. What is the area in which the concrete touches wooden molds? (No lid or bottom) - Salad

We need two tenths kg of a carrot, one tenth of peas and three tenths of of tomatoes to make salad. Express the fraction of the weight of the vegetables to be salad. Convert the result to grams. - Cupcakes

In a bowl was some cupcakes. Janka ate one third and Danka ate one quarter of cupcakes. a) How many of cookies ate together? b) How many cookies remain in a bowl? Write the results as a decimal number and in notepad also as a fraction. - Wood cuboid

What is the weight of the wood cuboid 15 cm, 20 cm, 3 m if 1 m^{3}wood weighs 800 kg? - 3 buses

At morning 5:00 am three buses started from one place. The first travel in five-minute intervals, the second at 10-minute intervals and the third at 25-minute intervals. At what hour will again be the three buses coming from the same place? - Dealer

Dealer sell digital camera for € 474. Thirty percent of the price was his profit. After some time, decreased interest in selling the camera and therefore reduce its sales price by 11 %. How many percent of the new price now is dealer's profit? Round the - Cardboard

How many m^{2}of cardboard are needed to make the cuboid with dimensions 40 cm 60 cm and 20 cm? - Hostel

Students are accommodated in 22 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 106 children there? - Speed of sound

The average speed of sound is 330 meters per second. Estimate how long it will hear the church bell 1 km away. Calculate the distance from what would hear sound after 10 seconds. - Circle - easy 2

The circle has a radius 6 cm. Calculate: - Glass aquarium

How many m^{2}of glass are needed to produce aquarium with bottom dimensions of 70 cm x 40 cm and 50 cm high? - Number

Determine unknown number if you know that difference between five times and triple of number is 42. - Rails

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

On a Concert were sold 150 tickets for CZK 360, 235 tickets for 240 CZK and 412 for 180 CZK. How much was the total revenues for tickets? - Math classification

In 3A class are 27 students. One-third got a B in math and the rest got A. How many students received a B in math? - Little hand

What angle shifted little hand on the clock after one hour and 38 minutes? - The cube

The surface of the cube is 150 square centimeters. Calculate: a- the content of its walls b - the length of its edges

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