Direct proportionality - math word problems - page 30 of 38
Number of problems found: 741
- Forest cleanup
A group of nature conservationists (a total of 28 members) and a sports team (16 members) worked for 7 days to clean up the forest park with an area of 10 ha. How many days would conservationists have to work without the help of athletes? - Plot dimensions
Calculate the actual proportions of the rectangular plot in meters, which has dimensions of 70 mm and 90 mm, on a 1:2000 scale plan. - Oats supply
Five horses will eat through the oat supply in 15 days. How many days will the supply last for three horses? - Bulb consumption
Eighty identical light bulbs shine in the sports hall for two hours. How long does it take to consume the same energy from 100 such bulbs? - Brick delivery
The truck driver drives bricks for construction. If he went three times a day, he would produce the bricks needed for construction in 12 days. How many times a day does he have to go to finish work three days earlier? - Reward sharing
Vlasta, Susan, and Vera shared the reward in the ratio of 2:8:5. Susan and Vera had 160 euros together. How old was Vlasta? - Board cutting
Cutting a wooden board into five parts takes 20 minutes. All slices are the same length. How long would it take to cut into eight pieces if we still cut at the same speed? - Rink entrance
There were 60 people at the rink, four-fifths of which were children under 15 years of age. A ticket for children under 15 costs €1 and for adults €2. a) How many children were there at the rink? b) How many adults were there? c) How many euros did they c - Aircraft dimensions
The model aircraft is made on a scale of 1:250. Length is 200 mm, wingspan 200 mm. Find the dimensions of the actual aircraft. - Reward distribution
The three workers were to share the remuneration of 410 euros according to their performance in working together. Thus, A: B = 4:3 and B: C = 5:2. Advise them on how to distribute the reward fairly. - Similar triangles
The triangles ABC and XYZ are similar. Find the unknown lengths of the sides of the triangles. The lengths: a = 5 cm, b = 8 cm and x = 7.5 cm z = 9 cm. - Weight equivalence
When weighing the bodies from the children's kit, it turned out that one cube had the same weight as three cylinders and two cylinders had the same weight as six pyramids. How many pyramids have the same mass as one cube? - Centimeters - block
The surface of the block is 4596 square centimeters. Its sides are in a ratio of 2:5:4. Calculate the volume of this block. - Trapezium
The length of the base and the height size of the trapezium base are at a ratio of 5:3:2. The trapezium area is 128 cm². Calculate the length of the base and the height of the trapezoid. - Land area
The land area of Asia and Africa are in a 3:2 ratio, and the European and African are 1:3. What are the proportions of Asia, Africa, and Europe? - Planet diameters
The diameter of the Earth and the diameter of Mars are approximately 15:8, and the diameter of Mars and the diameter of the Moon are 2:1. What is the ratio of the diameters of the Earth, Mars, and the Moon? - Package Deal - what to choose
The parents decided to purchase a mobile phone for their son. They choose from the menu: ... Which offer is best? - Gasoline consumption Skoda MB
The consumption of cars for 100 km is 6.6 liters of gasoline and 1 liter of gasoline costs € 1.274. How many euros did grandfather spend when the car traveled 321 km? - Cake flour
They baked 325 cakes with 25 kg of flour. How many kilograms of flour do they need to bake 195 pieces of such cakes? - Two monuments
The distance between two historical monuments on a map with a scale of 1:500000 is 48 mm. Find the actual distance between these monuments in km.
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