Basic functions - math word problems

Number of problems found: 2643

  • Surface of wall
    cube Find by what percentage the surface of the cube will decrease if we reduce the surface of each of its walls by 12%.
  • Efficiency
    rychlovarna-kanvica What is the power output of a kettle 2 kW with an efficiency of 90%?
  • Value
    5times Find the value of the expression: 6!·10^-3
  • Dried apples
    jablka How many kilograms of fresh apples id needed to 120 kg of dried apples when from 0.4 tons of fresh apples we get 75 kg of dried apples?
  • Ornamental shrubs
    delnik Children committed to planting 240 ornamental shrubs. Their commitment, however, exceeded by 48 shrubs. Write the ratio of actually planted shrubs and commitment by lowest possible integers a/b.
  • Two machines
    machine Performances of two machines are in a ratio of 7:12. A machine with less power produced 406 pieces of products per shift. a) How many pieces produced per shift second machine? b) How many pieces produced two machines together for five shifts?
  • Bicycle gears
    rear_wheel_sprocket_cassette The toothed wheel on the bicycle pedal has 40 teeth, the wheel on the rear wheel has only 16 teeth. How many times does the rear wheel turn if the pedals rotate 50 times?
  • Gasoline
    fuel For nearly full tank of 40 liters of gasoline chauffeur paid 54 euros. How many euros it will cost to go 250 km long if the car has an average fuel consumption 7 liters per 100 kilometers?
  • Algebrogram
    plus Solve algebrogram: mama+anna=vari How many solutions are?
  • Apples and pears
    hrusky2 Mom divided 24 apples and 15 pears to children. Each child received the same number of apples and pears - same number as his siblings. How many apples (j=?) and pears (h=?) received each child?
  • Dividends
    money The three friends divided the win by the invested money. Karlos got three-eighths, John 320 permille, and the rest got Martin. Who got the most and which the least?
  • Percents
    percents2 How many percents is 900 greater than the number 750?
  • Above 100%
    percent Find 340 percent of the numbers 45 and 55.
  • Rails
    rails 18 m railway weighs 1260 kg. How much weighs 100 m of welded railways?
  • Z9-I-4
    numbers Kate thought a five-digit integer. She wrote the sum of this number and its half at the first line to the workbook. On the second line wrote a total of this number and its one fifth. On the third row, she wrote a sum of this number and its one nines. Fina
  • Tunnels
    Mysky Mice had built an underground house consisting of chambers and tunnels: • each tunnel leading from the chamber to the chamber (none is blind) • from each chamber lead just three tunnels into three distinct chambers, • from each chamber mice can get to any
  • Content area and percents
    squares Determine what percentage is smaller cube surface, when the surface area of the wall decreases by 25%.
  • Fluid
    nadoby We have vessels containing 7 liters, 5 liters, and 2 liters. The largest container is filled with fluid, the others empty. Can you only by pouring get 5 liters and two 1 liter of fluid? How much pouring is needed?
  • Cuboid enlargement
    cubes By how many percent increases the volume of cuboid if every dimension increases by 30%?
  • Pet store
    fish In a pet store, they are selling out the fish from one aquarium. Ondra wanted half of all fish, but they don't wish cut by hal fany fish he got one more than demanded. Matthew wished the remaining half of the fish, but as Andrew got half the fish more tha

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