Maths practice for 12-year-olds - page 285 of 351
Number of problems found: 7020
- Runner
Peter ran at a speed of 12.4 km/h. After 45 minutes of running, he had a hiatus. The track is 31 km long. How many kilometers is he still to run if he still runs at the same speed? - Reduction 3757
The goods became cheaper twice a row, first by 18% and then by 16% of the new amount. After this double reduction, it cost precisely 516 euros and 60 cents. Determine the flood amount of the goods. - Expression: 3754
Express the value of y in the expression: y / 9^(- 1) = 72 - Traveling 3752
The car was traveling at a speed of 112.5 km/h. Determine what distance he would have walked in 144 minutes if he had kept going at the same pace. - Unknown number 17
Milada said, I am thinking of a number such that I evaluate expression x1/3; the expression's value would be 5. Which number is Milada thinking? - Kilometers 3748
Damian drove 4 kilometers in 2.5 hours. Dasha drove 12 kilometers in 9.5 hours. Who went faster? 1) Damian 2) Dasha - Distance 3742 The sprinter ran a distance of 500 meters in 61 seconds. How long would it take him to run a distance of 1,200 meters if he kept running at the same pace?
- Determine 3736
Determine the result: 3³:34 - Unknown number 4
I think number. When I divided its square root by its 1/9, I got a number 1. What number am I thinking? - Friends James and Jaroslav are friends. Together they had 48 toy cars. But if John had taken eight cars from Jaroslav, Jaroslav would have had 1.5 times more toy cars than James. How many toy cars had Jaroslav and James?
- Four swords
Obelix has three helmets, four swords, and five shields. How many words must you make at the blacksmith forge Metallurgix to be able to walk another 90 days in unique armor? - Fuel mileage
You have a 3/8 tank of fuel. Estimate fuel consumption at 6 mpg. Estimate speed at 50 mph. Your fuel tank holds 200 gals. Figure out fuel mileage. - Blueberries
Miko and Anton have a total of 1,580 blueberries. Miko and Anton have them in the ratio of 2:3. Determine how much each of them has. - Spain vs USA
Spain lost to the US by four goals. In the match, the total fell by ten goals. How many goals gave Spain, and how did the United States? - Determine 3709
Find the result of the example: (1:125)² - Painting a hut
It is necessary to paint the exterior walls of the hut, whose layout is a rectangle of 6.16 m x 8.78 m wall height is 2.85 meters. The cottage has five rectangular windows; three have dimensions of 1.15 m x 1.32 m and two 0,45 m x 0.96 m. How much m² is n - Pool in litres
The pool is 3.5 meters wide, 6 meters long, and 1.60 meters high. Calculate the pool's volume in liters. - Unknown number 6
Find the unknown number, which is by 1.5 greater than its fourth. - Percents - easy
How many percent is 432 out of 434? - Water in aquarium
The aquarium cuboid shape with a length of 25 cm and a width of 30 cm is 9 liters of water. Calculate the areas which are wetted with water.
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