Simple proportion + direct relationship - math problems

Number of problems found: 50

Proportion 2
A car is able to travel 210 km in 3 hours. How far can it travel in 5 hours? Put what kind of proportion is this and show your solution.
Proportion 3
For every 8 mango trees in the orchard, there are 4-star apple trees. If there are 1320 trees, how many trees of each kind are there?
Motor oil
30 liters of oil cost 28.80 Euros. How much cost a liter?
Rails
18 m railway weighs 1260 kg. How much weighs 100 m of welded railways?
Candies
There are red, blue and green candies in bad. Red to green is in 6:11 ratio and blue to red in a 7: 5 ratio. In what proportion are blue to green candies?
Driver
I drive at an average speed of 70km/h, I drive 10 thousand km. How long did it take me?
The orchard
4 temporary workers harvested the orchard in 9 days. How many temporary workers we need for six days?
Cable car
The cable car will carry 1280 passengers in 40 minutes. How many people will be transported in 2.5 hours?
Painters
Ten painters paint the school in 20 days. How many days do four painters paint the school at the same pace of work?
Pumps
Five pumps pumped 1,800 hl of water for 3 hours. How many hectoliters of water pump same two powerful pumps for six hours?
Study
For 7 hours study, she scored a 75 so if she made 93 how many hours would she need to study?
Pumps
After the floods, four equally powerful pumps exhausted water from the flooded cellar in 6 hours. How many hours would take a drained out with three equally powerful pumps?
Everyone drinks the same
24 bricklayers drink 72 beverage bottles a day at the construction site. How many bottles would 19 bricklayers need? Everyone drinks the same.
Five pumps
The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with 5 same pumps?
Good swimmer
Good swimmer swims 23 m distance with ten shots. With how many shots he swim to an island located 81 m if still swims at the same speed?
New computer
New computer process a certain amount of data for 6 hours. For how many hours will process the same amount of data older computer that has a quarter lower performance?
Reading
If I read 15 pages a day, I will read the whole book in 18 days. How long will it take to read a book if I only read 9 pages every day?
Working time
At 10 hours work shift, work is done in 16 days. How many days will the work be done at 8 hours shifts?
Shadow and light
Nine meters height poplar tree has a shadow 16.2 meters long. How long shadow have at the same time Joe if he is 1,4m tall?
Apples
School kitchen bought 36kg apples for 12 kc/kg. How many kilograms of apples 1/4 cheaper can they buy for the same money?