Time Ruler combines the best parts of a nested tasklist and an event-based calendar view. Drag-and-drop tasks to time-block and reschedule, and view tasks on top of read-only online calendars.
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Finish the solution so that it returns the sum of all the multiples of ...