Maths practice for 12-year-olds - page 279 of 350

Number of problems found: 6985

Average speed
Michal left the house by car at a 98 km/h speed. He came into the goal place for 270 minutes. Determine the distance between the two places.
Hazelnuts 3786
Denis eats 12 hazelnuts in 1 day. How many more hazelnuts must he eat a day to eat 57 hazelnuts in 3 days if he ate the same amount of nuts every day?
Determine 3782
Determine the value of x if x^0.5 = 6
Together 3781
Milos would do the work himself in 5 hours. How much would it take Dan to do the job together in two hours?
Weightlifter
Weightlifter lifted 75% of its weight. Determine how much weight is lifted when he weighs 132 kg.
Shots
Determine the percentage rate of keeper interventions if 32 shots don't catch four shots.
Evaluation
What is the result of the example (81¹/4): 4?
Pedestrian
Dana started at 10:00 from point A to point B. These points are 12 km away. Determine how fast Daniel went when place B arrived at 11:54. Speed express in km/h.
Painting rooms
If Daniel paints for three hours daily, he completes it in 7.5 days. How many hours a day would he have to work to finish the job 1.5 days earlier?
Grass
Peter and Stano lawn grass for 3 hours 12 minutes. How long would it take for Peter if Stano lawn grasses himself for 384 minutes?
Expression 3764
Find the value of the expression 9^x / 4y if x = 0.5 and y = 2.25.
Expression: 3761
Specify the value of the expression: 1^-4:2^-3
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

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