Ratio + direct relationship - practice problems
Number of problems found: 311
- Baking 5
Baking 120 kg of bread requires 87 kg of flour. How many kilograms of flour will be needed to bake 400 kg of bread?
- Car uses
The car uses 91 liters of petrol to travel 700km. Determine the rate in liter per 100km.
Nicolette makes a small bead bracelet using five red, eight purple, and six green beads. A large necklace has the same ratio of beads as a small bracelet. If the large necklace requires 15 red beads, how many purple beads are needed to make a large bracel
- Car fuel
Tanya drove 3 1/2 hours and used 1/3 tank of gas. For how long could Tanya drive using a 1/2 tank of gas? Enter your answer as a mixed number in the simplest form in the box.
- 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?
- Tax reports
If 1 1/2 accountants can do 2 1/2 tax returns in 1 1/2 hours, how many tax returns can three accountants do in 3 hours?
- Lightning 69734
The sound travels at a speed of 1km in 3 seconds. If the thunder is heard 12 seconds after the lightning, what distance is the storm?
- Transported 67924
On Thursday, 240 skiers had to be transported, with two buses taking 30 minutes. How long did the transport take on Saturday if there were 660 skiers on the piste and three buses were used?
- Identical 63584
Water flows out of the tank in 28 minutes via three identical pipes. How long would it run through seven similar pipes?
- A pack
A pack of 8 sports drinks costs $5. How much would it cost to buy 72 sports drinks?
Manganese bronze contains the following metals per pound: copper 0.89 lb, tin 0.10 lb, and manganese 0.01 lb. How much copper is in a shaft that weighs 235 pounds?
- Dimensions 60923
The drawing of the apartment is in the ratio of 1: 200. The living room has dimensions of 2cm x 3cm in the picture. How many square meters does the living room have?
- Square function
If z varies jointly as x and the square of y, and z = 20 when x = 4 and y = 2, find z when x = 2 and y = 4.
- Jointly function
If z varies jointly as x and y, and z = 12 and x = 2 and y = 4, find z when x = 5 and y = 2
- 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?
- Markus painter
Markus used ¾ liter of paint to cover 10 ½ square meters of wall. How many liters of paint is needed to cover 12 ¼ square meters of the wall?
The state of Colorado has the shape of a rectangle. The map is sold on 2 posters. The first has 70 cm and 50 cm dimensions on a scale of 1: 1,000,000. The second poster has dimensions of 175 cm and 125 cm. What is the scale of the second poster?
Ember spent $144 on her birthday party for 18 guests. If the cost is at the same rate, how many guests will there be if she pays $176?
- 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?
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