There are a few things to consider when choosing the best necktie for yourself or as a gift. Here are five tips:
Nine
None. If you mean 3 out of 5 then 10
There are 4200, in all.
The answer is 3C2*4C4*5C2 = [3 * 1 * (5*4)/(2*1)] = 3*1*10 = 30 ways.
Since it must be a 5 digit number, range is the numbers from 20000 to 55555 we will use multiplication rule to figure this out too. If a number is divible by two, its last(ones place) digit is even. If it is divisible by 5 its last(ones place) digit is zero or 5. We don't give a rat's derriere what the other digits are (for divisibility by two or five) The number of ways to choose the ten thousands place digit is 4 the number of ways to choose the thousands place digit is 5 the number of ways to choose the hundreds place digit is 5 the number of ways to choose the tens place digit is 5 The number of ways to choose the ones place digit is FOUR, since it must be 0,2,4,5 and not 3 use multiplication rule and solution is 4 x 5 x 5 x 5 x 4 = 2000
Nine
You can wind up with 10 different pairs of books in your hand, which you can choose from a shelf of 5 books in 20 different ways.
None. If you mean 3 out of 5 then 10
There are 4200, in all.
You can make 125 different 3-digit numbers if you're allowed to repeat a digit (for example, 113, or 545), and 60 if you're not. If repetitions are allowed, then there are 5 ways to choose each digit to be 1,2,3,4, or 5, so the total number of ways is 5*5*5 or 125. If no repetitions are allowed, there are 5 ways to choose the first digit, but only 4 ways left to choose the second (for a total of 5*4=20 ways to choose the first two digits), because it can't be the same as the first. Then you have eliminated two choices for the third digit, so there are only 3 ways to choose it, for a total of 5*4*3=60 different 3-digit numbers.
The answer is 3C2*4C4*5C2 = [3 * 1 * (5*4)/(2*1)] = 3*1*10 = 30 ways.
There are 8 ways to choose the first book There are 7 ways to choose the second book - 8 x 7 = 56 ways to select two books There are 6 ways to choose the third book - 8 x 7 x 6 = 336 way to select three books There are 5 ways to choose the fourth book - 8 x 7 x 6 x 5 = 1,680 ways to select four books.
number of ways = (7 x 6 x 5) x (9 x 8 x 7) = 105840
Since there are 6 numbers that equal 26 to choose from, there are 6 to choose from for the first number, 5 to choose from for the second number, 4 to choose from for the third number, and so on. Therefore there are 6*5*4*3*2*1 ways or 6! or 720.
There is a choice of 5 scarves, and for each scarf a choice of 10 pairs of shoes, giving 5 × 10 = 50 ways.
Since it must be a 5 digit number, range is the numbers from 20000 to 55555 we will use multiplication rule to figure this out too. If a number is divible by two, its last(ones place) digit is even. If it is divisible by 5 its last(ones place) digit is zero or 5. We don't give a rat's derriere what the other digits are (for divisibility by two or five) The number of ways to choose the ten thousands place digit is 4 the number of ways to choose the thousands place digit is 5 the number of ways to choose the hundreds place digit is 5 the number of ways to choose the tens place digit is 5 The number of ways to choose the ones place digit is FOUR, since it must be 0,2,4,5 and not 3 use multiplication rule and solution is 4 x 5 x 5 x 5 x 4 = 2000
9*8*7*6*5=15,120 ways There are 9 selections to choose from for the first song, 8 for the second, 7 for the third, 6 for the fourth, and 5 for the fifth.