Lucky Robbie finds a roll of Scottish bank notes on the floor.
Scottish notes are available for £5, £10, £20, £50 and £100. He sees that there are nine notes and that the outside note is worth £100.
What is the difference between the largest and smallest amounts he could have found?
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.
Primary Mathematics Challenge 2009 (2009)
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 →Primary Mathematics Challenge 2009 (2009)