Inverse relationship - practice problems - page 2 of 20
Number of problems found: 388
- Children 81675
Mikuláš came to hand out gifts on December 6th and found out that he could hand out gifts to five children in 15 minutes with only one helper. How many minutes did they give out gifts to 40 children if Santa called 5 helpers? - Cleaners 81056
Four cleaners will clean the hotel in 15 hours. How long will they clean if, after 8 hours, one gets injured and leaves? - Reciprocal 13
What is the product of 5 2/3 and its reciprocal? - Kilograms 80532
75 kg of flour is ground from 100 kilograms of wheat. How much wheat is needed to obtain 135 kg of flour? - Wayne
Wayne can clear a plot of land in 1/3 hours, and Melvin can clear the same plot of land in 2/4 hours. What could possibly be the time for both Wayne and Melvin if they combine to clear the same plot of land? - Pasture 79214
I need to find out the number of bulls in the third period. In the first period, 12 bulls grazed on 3 and 1/3 ha for 4 weeks. In the second period, 21 bulls graze on 10 ha for 9 weeks. How many bulls in the third period graze for 24ha and 18 weeks? The pa - 6 Pipes
6 Pipes are required to fill a tank in 1 hour 20 minutes. How long will it take if only five pipes of the same type are used? Give your answer in hours and minutes. - Car uses
The car uses 91 liters of petrol to travel 700km. Determine the rate in liter per 100km. - Mrs. Sojka
Mrs. Sojka gave her class 12 minutes to read. Natalie read 7 1/2 pages in the time. At what rate in pages per hour did Natalie read? - Germinate 75304
Out of 150 seeds, 12 did not germinate. How many seeds will not germinate if we sow 450 of them? - Pamela 2
Pamela drove her car 99 kilometers and used 9 liters of fuel. She wants to know how many kilometers (k) she can drive with 12 liters of fuel. She assumes the relationship between kilometers and fuel is proportional. How many kilometers can Pamela drive wi - Ratios equation
Find the number x so that: 1:x=4:100 - Connected 73184
The tractor driver connected two seed drills behind the tractor and sowed 7 ha of grain in 5 hours. How many hectares did he plant in 8 hours the next day if he connected three seed drills? - Apartment 71114
A father and son paint the apartment together in 6 hours. My father would paint the apartment in 9 hours. In how many hours would the son paint the apartment himself? - Determine 70834
At the same time, a vertical 2-meter pole casts a shadow of 0.85 meters. At the same time, a chimney of unknown height casts a 45m long shadow. Determine the height of the chimney. - Improvements 70344
Two workers work equally efficiently and together can complete a given task in 5 hours. One worker improved his machine, changed his workflow, and increased his output by 40%. How long will it take both workers to complete the given task? - Circumference 69934
You know the ratio of the circumference of the circle to the area is 4:9. What is the circle's diameter? - Neziswa
Neziswa is conducting an experiment in which the temperature is measured carefully. The temperature was 76°C at the end of the first minute, and then it fell by 5°C every minute. Determine a formula to calculate the temperature (T) after m minutes. - Hectoliters 68174
In the meat atlas published by the Jindřich Boll Foundation, it is stated that one kilogram of meat requires 6.5 kg of grain, 36 kg of feed mixture, and 15 cubic meters of water. Laura's slice of beef in the burger weighed 45 grams raw. How many kilograms - Workshops 67984
Thirty-two tons of oranges are processed in eight workshops with 40 employees each. How many workers process 9 tons of oranges in 9 workshops?
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