Number theoryDifficulty 1.0JuniorFind the answerUnited Kingdom
Amrita is baking a cake today. She bakes a cake every fifth day. How many days will it be before she next bakes a cake on a Thursday?
(A) 5 (B) 7 (C) 14 (D) 25 (E) 35
Want a route through all this instead of an archive? The track
puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.