Henry Ernest Dudeney/Puzzles and Curious Problems/22 - The War Horse

by : $22$

 * The War Horse
 * Farmer Wurzel bought a old war horse for $\pounds 13$ and sold it later for $\pounds 30$.
 * After having paid for its keep, it turned out he lost half the price he paid and one-quarter the cost of his keep.


 * How much did Farmer Wurzel lose on the transaction?