Discrete Mathematics Level 5

Consider a row of tiles, numbered from 1 to 10 000.

By an interval we mean one or more consecutive tiles. For instance, there are precisely 6001 intervals of length 4000.

The \(1729^\text{th}\) tile is marked with a red cross.

How many intervals are there that contain the tile with the cross?


Problem Loading...

Note Loading...

Set Loading...