Problem 904
Daily Math Challenge - March 31, 2023
A, E, I , O, and U are vowels in the American (English) Alphabet. A number is considered to be completely even if the number is not only even but the spelling of the number contains an even number of vowels. For example, 4 is completely even since 4 is an even number and Four contains an even number of vowels, 2 (o and u). How many completely even integers greater than zero and less than 100 exist. Note: For this problem, y is considered a consonant.
Immediately after your correct answer is submitted, your name will be posted here.
Past problems
Individual Monthly & Annual Rankings
Leaderboard Monthly & Annual Rankings
Request solution
Custom Leaderboards Are Here!
Take the competition to the next level and encourage participation by creating custom leaderboards for your students or friends to join. Click below to try it out now!