Fractions + reason - math problems

Number of problems found: 82

  • Cake fractions
    dort Thomas ate 1/3 of cake, Bohouš of the rest of the cake ate 2/5. What fraction of cake left over for others?
  • Wage
    socik Increasing the minimum wage while maintaining the other parameters of the system, unemployment will be:
  • Unknown number 23
    cisla Find 2/3 of unknown number, which is two thirds of the 99.
  • Midnight
    clocks2 How many hours are, if the time that elapsed since 8:00 is 2/5 of the time that will past till midnight?
  • Coin
    mince How many 50-cent coins must be put in a row that next 50-cent coins after them (above) rolled on it axis?
  • Pipe
    trubka_ocel Steel pipe has a length 2.5 meters. About how many decimetres is 1/3 less than 4/8 of this steel pipe?
  • Unknown number
    zlomky Find the unknown number equal to a quarter of a fifth of a number, which is by 152 more than an unknown number.
  • Discount
    saty The dress was discounted by CZK 115, which was 12% of the original price. What is the cost of the dress after the discount?
  • Fuel consumption
    1car Škoda car has an average diesel consumption of 5.9 liters per 100 kilometers. What is the car range for a full tank of volume 70 liters?
  • Clock
    clock2 What time is now if the time elapsed afternoon is 2/10 of time that elapses before midnight?
  • Grandmother's clocks
    kukuckove-hodiny Grandmother's clock is late every hour by half a minute. Grandmother set the clock exactly at 8.00 am. How many hours will show after 24 hours?
  • A bag
    balls2 A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble, without replacing the first marble before drawing the second marble.
  • TV fail
    old_tv The TV has after 10,000 hours average 35 failures. Determine the probability of TV failure after 400 hours of operation.
  • Bonus
    moeny The gross wage was 1323 USD including 25% bonus. How many USD were bonuses?
  • Doubling
    exp The message is spreading that each day has doubled the number of people who know about it. All know a message for 20 days. How long known it, eighth people?
  • Reminder and quotient
    prime There are given the number C = 281, D = 201. Find the highest natural number S so that the C:S, D:S are with the remainder of 1,
  • Pocket
    bageta Mirka spent on a trip for gifts half pocket. For the third remain money bought a bagel. Six euros left her. How many euros had Mirka in pocket?
  • Marriage sttus
    family In our city, there are 3/5 of the women married to 2/3 of the men. Find what part of the population is free.
  • Competition
    f1_australia The organizers of competion wanted to spent big amount of money to pay for the competitors. One third of this amount spent on prizes and the remaining € 5,000 to diplomas. How much was committed for rewards?
  • On a farm
    sheep-500 On a farm, there are 90 rabbits, 700 sheep, 300 cattle and 500 pigs. What percentage of the total number of animals are rabbits?

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