HMMT 2017 C2
- Combinatorics
- Answer
How many ways are there to insert +'s between the digits of 111111111111111 (fifteen 1's) so that the result will be a multiple of 30 ?
Dataset text NuminaMath olympiads. Quoted with source.
Show the answer
2002
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
Similar problems
These problems have the most words in common with this statement.