Multiplication principle + prime numbers - math problems

Number of problems found: 7

  • Wedding guests
    Fifteen wedding guests could not agree on who would stand in the wedding photo. The groom suggested that all possible sets of wedding guests be made in the photographs.
  • Twenty-five
    How many are three-digit natural numbers divisible by 25?
  • Inverted nine
    In the hotel Inverted Nine, each hotel room number is divisible by 6. How many rooms can we count with the three-digit number registered by digits 1,8,7,4,9?
  • Combinations
    How many different combinations of two-digit number divisible by 4 arises from the digits 3, 5 and 7?
  • Stacks
    Annie has a total of $ 702. The money must be divided into stacks so that each buyer has the same amount of dollars. How many options she has?
  • No. of divisors
    How many different divisors have number 13 4 * 2 4?
  • Rectangles
    How many rectangles with area 8713 cm2 whose sides are natural numbers are?

We apologize, but in this category are not a lot of examples.
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Multiplication principle - math problems. Prime numbers - math problems.