Inverse relationship + simple proportion - practice problems - page 2 of 5
Number of problems found: 100
- Identical 63584
Water flows out of the tank in 28 minutes via three identical pipes. How long would it run through seven similar pipes? - Two water 2
Two water pumps can fill a water tank in 20 minutes. How many minutes will four pumps take to fill the tank at the same rate? - The cost 4
The cost to tile a floor that measures 7 x 6 square feet is $ 2,100. How much will tile a floor measuring 11 x 13 square feet cost? - Volleyball 2
In a volleyball game, Michael made four shots in 8 tries. At this rate, how many shots can he make in 12 tries?
- Strawberries
Three people pick strawberries from 48 rows in 8 hours. How many hours do five people need to pick strawberries from 20 rows? - The bricklayer
The bricklayer built a six-meter base of the fence in 3 hours. How long does it take to build a 14 m long base? - Petrol as fuel
A car can travel 480 miles on a full tank of petrol. The tank holds 60 liters. The fuel gauge shows there are 15 liters left in the tank. How many more miles can the car travel before it runs out of petrol? - Thirty-six 40921
Thirty-six women earned € 2,640 in 5 days during the strawberry harvest. How much € 24 will women earn in 8 days under the same conditions? - Mushroom risotto
630g of rice is needed to prepare mushroom risotto for four people. How many boxes of 500g rice do you have to buy to prepare risotto for 17 people?
- Book reading
Susan thought, "If I read 15 pages a day, I will read the whole book in 8 days. "How many pages would she have to read a day if she wanted to finish the book on the 6th day from the start of reading? And how many pages does the book have? - Mr. Ben
Mr. Ben drives bricks to the construction site. If he drove three times a day, he would make bricks in 8 days. How many times a day would he go every day to be done two days earlier? - Consumption 30411
The vest consumes 170 cm of fabric with a width of 140 cm. What is the consumption of a material that is 150 cm wide? - Gears
The front gear on the bike has 32 teeth, and the rear wheel has 12 teeth. How many times does the bike's rear-wheel turn if you turn the right pedal 30 times? What distance will you go if the circumference of the bicycle wheel is 250 cm? - Olive seeds
5 kg of oil is pressed from 100 kg of seeds. How many kgs of seeds do we need to produce 85 kilograms of oil?
- Poplar shadow
The nine-meter poplar casts a shadow 16.2 m long. How long does a shadow cast by Peter at the same time if it is 1.4 m high? - A family
A family of four consumes 220 liters of water a day. How many hectoliters of water are consumed by 68 tenants per day? - 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 nine pages every day? - Book reading
Suzan reads a book. If she read half an hour a day, she would read it in nine days. How many minutes does he have to read a day if he wants to read it three days earlier? - Six workers
Six workers earned a total of CZK 12,600 per week on the construction site (5 working days). How much do seven workers earn in 10 days with the same daily average salary?
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