Maths practice for 11-year-olds. - page 118 of 224

Number of problems found: 4479

Tank filling calculation
Five 1800hl filling pumps in 3 hours for how long does a 4hl filling 1800hl tank?
Half-filled
A cylindrical pot with a diameter of 24 cm is half-filled with water. How many centimeters will the level rise if we add a liter of water to it?
Perimeters
A rectangle has a perimeter of 16p centimeters. It had a width of 2p centimeters. Each side of an equilateral triangle is 1/2 the length of the rectangle. Find the total perimeter of the rectangle and the triangle if p=8.
Milk glass filling
The bottle contains 2 liters of milk. If 1/3 liter of milk fits in each glass, how many identical glasses will you fill from that bottle?
Wax candles
A company makes wax candles in the shape of a cylinder. Each candle has a diameter of 4 inches and a height of 7 inches. If the company used 7561.12 in³ of wax, how many candles did it make? Use 3.14, and do not round your answer.
I drive
I drive 9 km in 30 minutes. What is the average speed of the motion?
Height of the cylinder
The cylinder volume is 150 dm cubic. The base diameter is 100 cm. What is the height of the cylinder?
ATM withdrawal calculation
The ATM had 33250 euros on Monday. 10/25 was withdrawn from it on Tuesday, and 2/5 was withdrawn from the same ATM on Wednesday. How many did they pick on Tuesday, and how many on Wednesday? How many euros remained in the ATM?
Akpan
Akpan spent 3/8 of his time in school during the week. What fraction of his time does he spend at home during the week?
Berry Smoothie
Rory has 5/8 cups of milk. How much milk does she have left after she doubles the recipe for the smoothie? Berry Smoothie: 2 cups strawberries 1 cup blueberries 1/4 cup milk 1 tbsp (tablespoon) sugar 1/2 tsp (teaspoon) lemon juice 1/8 tsp (teaspoon) vanil
Sprinter speed calculation
The sprinter ran 101 meters in 10 seconds. At what speed in km/h did he run?
Empty and full
An empty can has a mass of 1/6 lb. When filled with sand, it has a mass of 7/12 lb. Find the mass of the sand in the can.
Sum of the edges
The sum of the lengths of all cube edges is 72 cm. How many cm² of colored paper are we going to use for sticking?
Parallerogram
The ABCD parallelogram is a = 2.5 cm, height to side a is 7.2 cm and height to side b is 4 cm. Find the side length b.
Aquarium
Try to estimate the weight of the water in an aquarium 50cm long and 30cm wide when poured to a height of 25cm. Find the weight of the aquarium's water.
Office painting cost
Our office has dimensions of 5 m by 4.5 m and a height of 2.5 m. How much will it cost to paint it if a liter of paint costs €3.50 (yield 10 m²/l) and the painter asks €1.20 for the job and 1m square painting? It will need to be painted twice.
Four operations
How many ways can you add +, -, *, / characters among four tens to always get the number 10?
Aquarium water calculation
The aquarium has the dimensions a = 250 cm, b = 50 cm, and c = 60 cm. Water is poured into the aquarium up to 45 cm. Do you calculate how many liters of water are in the aquarium?
Two divided
Two divided by nine-tenths.
Tenths digit
For 10.932, which digit is in the tenth place?

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