The lost page
The post loses one page in ten. What should you send again - and how much does the answer cost?
A letter of forty-eight numbered pages goes through a post office that loses some of them, and the listener sends back which pages arrived. Three rules for what to post again run side by side on the same losses. Watch how many pages each one moves per round trip, and how many it posts twice.
Board: Postcards and Phone Calls →On a narrow screen the three rules stack. Both dials stay above them, and the loss table scrolls sideways.
try this Drag Pages the post loses to 20%, then drag Pages allowed in the post at once and watch pages delivered per round trip.
Included with a plan
This lab is included with a plan. The first three lessons of every track are free, with their boards and videos. A plan unlocks every lesson, board, video, lab and paper for one price.