Percentages + multiplication - math problems

Number of problems found: 60

  • Percentages
    percent2 Expressed as a percentage:
  • Mixed with percentages
    percent_21 Calculate 33 1/3% of 570.
  • Percentages above 100%
    cmelak What is 122% of 185? What is the meaning of percentages above 100%?
  • Events
    items Event P has probability of 0.84. What is the probability that the event P occurs in 3, 5, 7 try.
  • Double percent
    percents What is 40% of 80% of 11800?
  • travel agency
    nevesta Small travel agency offers 5 different tours at honeymoon. What is the probability that the bride and groom choose the same tour (they choose independently)?
  • The ball
    ball1_4 The ball was discounted by 10 percent and then again by 30 percent. How many percent of the original price is now?
  • Rate or interest
    penize_45 At what rate percent will Rs.2000 amount to Rs.2315.25 in 3 years at compound interest?
  • Associative law multiplication
    sale_4 In a warehouse, you obtain a 20% discount but you must pay a 15% sales tax. Which would you prefer to have calculated first: discount or tax? Explain. (result write as: 1 = first discount, 2 = first tax, 3 = no matter what first)
  • Percent calculation
    percent_sign Calculate 51% if 99% is 79.
  • Highway repair
    truck_6 The highway repair was planned for 15 days. However, it was reduced by 30%. How many days did the repair of the highway last?
  • If we
    math_4 If we increase the unknown number by 4%, we get 780. Determine the unknown number.
  • Three colors
    balls2 Find the probability that 3 balls of the same color will be drawn from fate with 10 white, 10 red, and 10 blue balls.
  • Discount
    sales_discount Product has been discounted twice by 19%. What is the total discount given?
  • Percent chaining
    meter_1 Calculate 20% from 70% from 80 km
  • Briefcase
    aktovka The cost of producing briefcase is € 45. The manufacturer wants to sell it at a profit 30%. For how much will briefcase sell?
  • Two aces
    cards_7 From a 32 card box we randomly pick 1 card and then 2 more cards. What is the probability that last two drawn cards are aces?
  • JUDr. Usury
    paragraph Judge JUDr. Usury approved the agreement on guilt and punishment where confessed to pay daily interest 0.18%. How big is a yearly interest? Year has 360 days.
  • Birthday paradox
    holland How large must the group of people be so that the probability that two people have a birthday on the same day of the year is greater than 90%?
  • Farmer
    krava The farmer farming 293 ha of arable land and the remaining 20% are meadows and pastures. How much land farmer owns?

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