Discrete Math

posted by .

How many friends must you have to guarantee that at least five of them will have birthdays in the same month?

  • Discrete Math -

    Well, if there are 4 in each month, you have 48 friends.

    The 49th will have to be in the same month as one of the others.

  • Discrete Math -

    49

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math, help

    I need help or hint on the setup: what is the probability that at least 2 students in a class of 36 have the same birthday?
  2. Statistics

    I am stuck on this probability question: Any suggestions of where to start would be great!! Thanks! Given 20 people, what is the probability that among the 12 months in the year there are 2 months containing exactly 4 birthdays each …
  3. Math

    There are 1,800 students at a high school. Of the students who have smoked at least one cigarette in the last month, five-eighteenths are twelfth graders. Thirty-five percent of the remaining students are eleventh graders, and the …
  4. Math - Need help please

    There are 1,800 students at a high school. Of the students who have smoked at least one cigarette in the last month, five-eighteenths are twelfth graders. Thirty-five percent of the remaining students are eleventh graders, and the …
  5. Read my reponse

    There are 1,800 students at a high school. Of the students who have smoked at least one cigarette in the last month, five-eighteenths are twelfth graders. Thirty-five percent of the remaining students are eleventh graders, and the …
  6. statistics

    How many friends must you have to guarantee that at least five of them will have birthdays in the same month?
  7. math

    A certain school has an enrollment of 400 students.Must there be at least two students in this school whose birthdays fall on the same day of the year?
  8. Math

    This year, Ms. Nelson's class has 20 students. Which of the following statements must be true?
  9. Discrete Math

    There are 8 black balls and 8 white balls in a box and cannot be seen through: • How many balls must be picked up in order to guarantee there are three balls having the same color • How many balls must be picked up in order to …
  10. English

    1. I have more than five books. 1-2. I have over five books. (Does it include five books?

More Similar Questions