SOLUTION: if an integer is randomly chosen from the first 50 positive integers, what is the probability that an integer with a digit of 3 is selected?

Question 1096062: if an integer is randomly chosen from the first 50 positive integers, what is the probability that an integer with a digit of 3 is selected?
Found 2 solutions by luke94, jim_thompson5910:
Answer by luke94(89) (Show Source): You can put this solution on YOUR website!
Write out all the integers that have a digit of 3 in the first 50 positive integers:
> 3,13,23,30,31,32,33,34,35,36,37,38,39,43
Then, count how many times there is an integer with a digit of 3 which is 14 times.
therefore,
or 28%
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

The tutor @luke94 has the correct idea, but made a typo. It should be (change the 15 in the denominator to 50)

RELATED QUESTIONS
if an integer is randomly chosen from the first 50 positive integers, what is the... (answered by CubeyThePenguin)
An integer is chosen at random from the first 200 positive integers. If the integer... (answered by Alan3354,ikleyn)
An integer is chosen at random from first 60 positive integers. Find the probability that (answered by ikleyn)
An integer is chosen at random from the first 200 positive integers.If the integer chosen (answered by Alan3354,ikleyn)
an integer is chosen at random random from the first two hundred digits. what is the... (answered by Fombitz)
3) An integer is chosen at random from the first 50bdigits. What is the probability that... (answered by Mathtut)
a)An integer is choosen at random from the first 200 positive integer. what is the... (answered by mathmate)
A positive integer less than 100 is randomly selected. What is the probability that the... (answered by Fombitz)
Find two consecutive positive even integers such that the square of the second integer... (answered by mananth)