A voucher code is made up of four characters. The first is a letter: , or . The second and third are different digits. The fourth is the units digit of the sum of the second and third digits.
How many different voucher codes like this are there?
Select one option, then click Submit.
180
243
270
300
2700
Select an option, then submit.
Sign in or create an account to reveal answers, view the solution, and save your progress. Create a free account to unlock practice and keep track of your work.
Intermediate Mathematical Challenge 2015 (2015)
One puzzle per day. Cryptarithm, Magic Square, Summit. No sign-up required to play.
Play daily puzzle →Interactive problems and curated lessons—water pouring, magic squares, knight's tour, and more.
Browse library →See how you rank. Top solvers by problems solved correctly. Sign in to climb the ranks.
View leaderboard →Intermediate Mathematical Challenge 2015 (2015)