Multiplication principle - high school - math problems

Number of problems found: 140

School committee
7 students was elected to the school committee. In how many ways can the President, Vice-President, Secretary and Treasurer be selected?
Medals
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
PIN - codes
How many five-digit PIN - code can we create using the even numbers?
Hockey
Hockey match ended 8:2. How many different matches could be?
Task of the year
Determine the number of integers from 1 to 10⁶ with ending four digits 2015.
How many 2
How many three lettered words can be formed from letters A B C D E G H if repeats are: a) not allowed b) allowed
Possible combinations - word
How many ways can the letters F, A, I, R be arranged?
Combinatorics
The city has 7 fountains. Works only 6. How many options are there that can squirt ?
7 heroes
9 heroes galloping on 9 horses behind. How many ways can sort them behind?
Disco
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
Probability
What are the chances that the lottery, in which the numbers are drawn 5 of 50 you win the first prize?
Combinations
How many different combinations of two-digit number divisible by 4 arises from the digits 3, 5 and 7?
Cars plates
How many different licence plates can country have, given that they use 3 letters followed by 3 digits?
Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
Menu
On the menu are 12 kinds of meal. How many ways can we choose four different meals into the daily menu?
School parliament
There are 18 boys and 14 girls in the class. In how many ways can 3 representatives be elected to the school parliament, if these are to be: a) the boys themselves b) one boy and two girls
One three
We throw two dice. What is the probability that max one three falls?
Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
Vans
In how many ways can 9 shuttle vans line up at the airport?
School trip
The class has 19 students. What different ways students can be accommodated in the hostel, where available 3× 2-bed, 3× 3-bed and 1× 4-bed rooms. (Each room has its unique number)