Speed & Distance Puzzles 25until all met at the center, from which they started, for the fourth time.
The distance round each circle was exactly one-third of a mile. When did they
finish their ride?- THE DONKEY CART
"Three men," said Crackham, "Atkins, Brown, and Cranby, had to go a
journey of forty miles. Atkins could walk one mile an hour, Brown could walk
two miles an hour, and Cranby could go in his donkey cart at eight miles an
hour. Cranby drove Atkins a certain distance, and, dropping him to walk the
remainder, drove back to meet Brown on the way and carried him to their
destination, where they all arrived at the same time.
"How long did the journey take? Of course each went at a uniform rate
throughout."