Rankle #11 answer: river length (shortest to longest)

The answer

Rank by river length (shortest to longest)

1. 1Thames346 km
2. 2Danube2,860 km
3. 3Congo4,700 km
4. 4Amazon6,400 km

Why this order

Ranked shortest to longest, Thames (346 km) goes at the top and Amazon (6,400 km) at the bottom.

The closest call is Congo (4,700 km) against Amazon (6,400 km), about 36% apart. That is the swap most likely to cost a point.

The biggest gap is between Thames and Danube, about 8.3 times apart, so that boundary should be the easiest part of the order to get right.

From top to bottom the figures span a factor of roughly 18.

These are the figures the game reveals after you submit. They are rounded; only the order is scored.

Difficulty: medium, judged by how close the tightest pair is.

How it was scored

right slot, one place out, two or more out. The score is how many items sit in the right slot, and only 4/4 is a win. Full rules on the how to play page.