An algebra problem by James Hadley
(Warning: the numbers in here are not accurate. All non-evergreen trees drop all leaves each year. This tree is fictitious and any resemblance to a real tree is purely coincidental.)
A tree produces 1000 leaves a year. In Summer it produces four times as much as in Winter. In Fall it produces half as much as in Spring.
The same tree drops 855 leaves a year. In Fall it drops 11 times as much as in Spring and in Summer it drops one twelfth of what it drops in winter.
What is the sum of the total leaf production of Spring and Fall?