Multiplication principle + prime numbers - practice problems
Number of problems found: 8
- 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.
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?
- Different 6709
Milan found out that he could wear pants and a T-shirt in a total of 28 different ways. How many T-shirts and pants can he have? List all options.
How many different combinations of two-digit number divisible by four arises from the digits 3, 5, and 7?
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?
How many rectangles with area 7724 cm² whose sides are natural numbers?
Multiplication principle - practice problems. Prime numbers - practice problems.