Direct proportionality - math word problems - page 23 of 35
Number of problems found: 697
- Hours 4443
Lada drove 27 km in 3 hours. How many km will he go in 7 hours?
- What scale
What scale is the map drawn if it shows a 15km route from the station to the ruins with a line 30cm long? A) 1:2000 B) 1:5000 C) 1:20,000 D) 1:50,000
- Rhombus and diagonals
The rhombus area is 150 cm2, and the ratio of the diagonals is 3:4. Calculate the length of its height.
- Materials 4405
Two trucks were supposed to load the building materials in 10 days. After 6 days of work, the first car broke down, and the second one carried building materials for another 9 days. How many days would the first and second cars take the building materials
- Letohrad 4396
On a map at a scale of 1:400,000, the distance between Letohrad and Prague is 4.5 cm. What speed does Dad have to go to be in Prague at 9 o'clock when he leaves at 6 o'clock, 40 minutes?
- Tower model
The tower's height is 300 meters, and its weight is 8000 tons. How high is the model of the tower's weight of 1 kg? (State the result in centimeters). The model is made from exactly the same material as the original no numbers need to be rounded. A result
- 9332% 4371
When 17.2 kg is 94.9332%, how much kg is 66%?
- Two similar triangles
Find unknown sides of a similar triangles: a = 6cm, b = 8cm, c =?, a '=?, b '= 12cm, c' = 15cm
- Cube
One cube has an edge increased five times. How many times will larger its surface area and volume?
- Cuboid - ratios
The sizes of the edges of the cuboid are in the ratio of 2:3:5. The smallest wall has an area of 54 cm². Calculate the surface area and volume of this cuboid.
- Distance 4268
The map's scale is 1:10000. What is the actual distance of 4cm on the map?
- Three-quarters 4216
The machine moves 36 products in half an hour. How many products will move in three-quarters of an hour?
- The land
The land in the shape of a square has 9 ha. How big a side will the land have at a scale of 1:5000?
- Underwater 4189
The water pillar is partly embedded in the ground, partly underwater, and protrudes 55 cm above the water. The length of the part above the water to the length of the part in the water is in the ratio of 1:2. The length of the part above the water to the
- Workers 4168
Ten workers managed to repair the road in 22 days. After four days, two more workers joined to speed up the work. How many days does it take to repair the road?
- Pumps
Five pumps pumped 1,800 hl of water for 3 hours. How many hectoliters of water did the same two powerful pumps pump for six hours?
- Breads and bakery
In the bakery, the baker baked 3900 pieces of bread in 6 days. How many breads are baked in one day? How many bakes per month (month=30 days)
- Ornamental shrubs
Children committed to planting 240 ornamental shrubs. Their commitment, however, was exceeded by 48 shrubs. Write the ratio (r) of actually planted shrubs and commitment by the lowest possible integers a/b.
- Dried apples
How many kilograms of fresh apples are needed for 120 kg of dried apples when we get 75 kg of dried apples from 0.4 tons of fresh apples?
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