1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Use of Division Algorithm word problem

  1. Aug 7, 2012 #1
    1. The problem statement, all variables and given/known data

    In Florida, the fourth and fifth digits from the end of a driver's licence number give the year of birth. The last three digits for a male with birth month m and date b are represented by 40(m-1)+b. Determine the dates of birth of people who have last five digits 42218 and 53953.

    2. Relevant equations

    3. The attempt at a solution

    For license number 42218 I set up the formula:


    June 18th 1942. (even though I consider 18 to be the fourth and fifth digits and 42 to be the first and second).

    For the second license number 53953 I set up the problem the same way and wound up with:


    I can't seem to find any m's or b's that make "Sense", i.e. m between 1 and 12 and b between 1 and 31.
  2. jcsd
  3. Aug 7, 2012 #2


    User Avatar
    Science Advisor

    Yes, from the information given, the largest number for that 3 digit code should be 11x40 + 31 = 471. So perhaps the question has a typo.
    Last edited: Aug 7, 2012
  4. Aug 7, 2012 #3
    That's what I was hoping! good to see i'm not missing anything.

    thank you.
  5. Aug 7, 2012 #4


    User Avatar
    Science Advisor

    Are you sure there's not some further information to that problem that we're not being told. The example says "for a male" ..., perhaps they add 500 for a female?
  6. Aug 7, 2012 #5
    I think you may be right. It's worded very poorly however.

    anyway, onto the next.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook