Brain Teasers
Birthday Number
A "birthday number" is defined as follows: add all digits of the month and day of the birthday. For example, November 24th has "birthday number" 1+1+2+4=8.
What are the birthdays that share the second smallest birthday number?
What are the birthdays that share the second smallest birthday number?
Hint
What is the smallest birthday number?Answer
The smallest birthday number is 2, as in 1.1 and 10.1.The second smallest birthday number is 3, as in 1.2, 1.11, 1.20, 2.1, 2.10, 10.2, 10.11, 10.20, 11.1, 11.10.
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Comments
Makes no sense... explain.
this is way too easy. but thank you for posting.
agreed it was pretty easy. Meek the concpet is actually quite simple if you the number of the month (Jan - 1, Feb - 2, Mar - 3 etc) to the number of the day of the month (1st, 2nd, 3rd), then add the number of that answer together to get a single digit number (24th of January wold be 2+4+1 = 7).
Yah, it's already been said: easy. That is all.
There should have been 4 correct answers.
I'm with geekymeek - I didn't understand this at all!
What I meant was there should have been 4 dates sharing the smallest birthday number.
that was a really hard one it took me along time to figure it out!
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