# 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?

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Multiplication principle - math problems. Prime numbers - math problems.