Direct proportionality - math word problems - page 28 of 38
Number of problems found: 741
- Pool filling
The swimming pool is filled with four inflow pipes in 9 hours. If one tributary is broken, how long will it be filled? - Hay supply
Hay stock is enough for four horses for 60 days. How long would this supply last for ten horses? - Petrol consumption
Two identical cars use 12 l of petrol to cover 150 km. How much gasoline do 25 similar cars use per 1800 km? - Cooking on LPG
The gas bomb lasts 30 weekends for 2 hours of daily cooking. How many days will we be able to cook if we cook for 3 hours a day? - Cow hay
I eat four cows in 5 days and 16 bags of hay. How many bags will five cows eat in 5 days? - Chocolate cost
If we pay 1.40 euros for two chocolates, how much will we pay for five chocolates? - Dried apples
57 kg of 3q red apples is dried. How many dried apples do we get from 60 kg of fresh apples? - Material supply
The material for 83 masons of the company is enough for 12 days. How many days will this supply be enough for them if the company has accepted six more masons? - Paper recycling
A recycled paper made from 1.5 tons of old paper is equal to that made from 10 trees. How much paper do pupils collect to save 100 trees from falling? - Scale reduction
Write down the scale that the displayed item has been reduced to one-third. - Soap cost
A box with six pieces of soap costs x crowns. How much will five pieces of soap cost? - Cheese proportion
Mom makes sheep's cheese and cow cheese spread in a 5:3 ratio for two children. What proportion do they have to mix sheep cheese and cow cheese if they make the same spread in the school cafeteria for 350 children? - Annual reward
The annual remuneration of the two employees was a total of EUR 18,750. The remuneration of one of them in 6 months was the same as the other in a year. How big was the annual reward for each of them? - Engine pulley
The engine has a 1460 rev/min (RPM). The disc diameter is 350 mm. What will be the peripheral disc speed in RPM? Pulleys on the engine have a diameter of 80 mm, and a disc has a diameter of 160 mm. - Map distance A map has a scale of 1:55,000. A line of 10 cm shows the distance between places A and B. What is the distance in reality?
- Ratios
Reduce the numbers: 50 in a 1:2 ratio 111 at a ratio of 2:3 70 at 10:50 560 at a ratio of 3:8 - Road cleaning
Eight workers in 6 days sweep 2400 m² roads. How many m² will six workers clean in 4 days? - Ratio expressions
Express as a ratio: a/ There are 200 boys and 300 girls in the school. b/ The number of chocolates eaten will triple on Nicholas Day. c/ During the holidays, the number of bus passengers decreased by a quarter. - Brass sculpture
Brass is an alloy of copper and zinc in a ratio of 3 to 2. How much copper and zinc does a sculptor need to make a brass sculpture that should weigh 15 kg? - Ratio
Write the ratio with other numbers so that the value is the same: 2:9
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