Math
posted by Happy Face .
A three digit number is created using the digits 4, 5, and 6. Each digit may only be used once. What is the probability that the three digit number will be less than 550?
Please Help!!
Thank You!!

since there are only 6 possibilities, lets list them
456, 465, 546, 564, 645, 654
how many of these are less than 550 ?
so ....
Respond to this Question
Similar Questions

math
using digits 19 only once, multiply a 3 digit by a 2 digit number and get a 4 digit result 12*345=4140? 
math  8th grade
use the numbers one to nine, each one only once. now multiply a two digit number by a three digit number and get a four digit answer using each of the digits, 19 each only once. 12 x 345 = 6789 of course that isn't a true statement … 
math
The number uses every number 09 the numbers are used only once the fourth digit is 4 the first digit in the billions place is 3 the 5 is next to the last digit the sixth digit is 7 the digit after 3 is 9 the digit before 5 is 2the … 
math
ann wrote a three digit number. the digit inthe hendreds place is 4 less than the digit in the ones place. the digit in the tens place is two more than the digit in the ones place.the sum of the three digits is 16. what is the three … 
math
*The number has 8 digits, none of the digits are the same. *It is evenly divisible by 10. *The value of one of the digits is 80,000 *The digit in the millions place is the largest 1digit odd number. *The digit in the thousands place … 
Math
What is the three digit mystery number? Clues: It is less than 300, the tens digit is 4 more than the hundreds digit, the sum of the digits is 9, the hundreds digit is 2 less than the ones digit. 
Math  Algebra
What is the linear equation that will represent the second statement in the following problem: "The sum of the digits of a threedigit number is 12. If the hundreds digit is replaced by the tens digit, the tens digit by the units digit, … 
algebraII
the sum of the digits of a three digit number is six. the ten digit is one less than the units digit and the number is twelve more than one hundred times the hundred digit Find the three digits x y=x1 z=72x x+x1+z=6 2x1+z=6 z=72x … 
Math
In a three digit number, the digit is twice the units digit and the hundreds digit four times the unit digit .also,the sum of its digits is14 .find the number 
Math
Determine all pairs (m, n) of a twodigit natural number m and a singledigit natural number n satisfying the following conditions. 1) If the number n is given as the number between the two digits of the number m, then a threedigit …