Simple proportion - practice problems - page 5 of 16
The trinomial is the mathematical notation of the calculation of the unknown term of direct or indirect proportionality from three known values. We write three known values and one unknown on two lines and add arrows. In the same direction if the values are directly proportional, or in the opposite direction if they are inversely proportional. It is a tool for solving the equality of two ratios.Number of problems found: 311
- Kilograms 65254
Twelve sheep will eat 5100 kg of hay in 17 days. How many kilograms of hay will seventeen sheep eat in 12 days? a) 1020kg b) 3600kg c) 5100kg d) 7225kg
- Gasoline 65034
My father refueled 40 liters of gasoline for 61.40 euros. He then refueled 8 liters of the same petrol into an empty canister. How many euros did gasoline cost in a canister?
- Products 64374
The machine will produce 5,600 products in 7 hours. How many products will they make in 8 hours?
- Identical 63584
Water flows out of the tank in 28 minutes via three identical pipes. How long would it run through seven similar pipes?
- The proportion
Solve for N in this proportion: 6/5=30/N?
- Supported 61914
A person lifts a stone weighing 285 kg with the help of a lever that is supported at a distance of 30 cm from the stone. A person acts on the lever at a distance of 90 cm from the support. How much force does a person have to use to lift a stone?
- Gravitational 61894
The center of force on the wheel is 1.2 m from the axis of rotation, and the load is attracted by the earth's gravitational force equal to 800 newtons at a distance of 40 cm from the axis of rotation. How much force F2 does the worker lift the wheel?
- A pack
A pack of 8 sports drinks costs $5. How much would it cost to buy 72 sports drinks?
- Sack of rice
A 50-kilogram sack of rice has a price of ₱1 750. How much do you pay if you only buy 35 kilograms of it?
- 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?
- Direct proportion
y varies directly as x and y=32 when x=4. Find the constant of variation.
- 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?
- Earnings 2
Trina's paycheck earnings vary directly from the number of hours she works. If she works 19 hours and earns 187.15 pesos, what should she earn if she works 40 hours?
- Oil crisis
A car runs 16 km using 1 liter of petrol. How much distance will it cover using 2 3/4 liters of petrol?
- If Jada
If Jada read 75 pages in four hours, how long would it take her to read 250 pages?
- Wall builders
If 12 men can build a wall 398 meters long in 48 days, how long would it take 33 men to build a wall 347 meters long? Answer to 3 decimal places.
- 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 meters long base?
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