Tough and Tricky questions: Word Problems.
At Petes Pet Shop, 35 cups of bird seed are used every 7 days to feed 15 parakeets. How many cups of bird seed would be required to feed 9 parakeets for 12 days?
A) 32
B) 36
C) 39
D) 42
E) 45
Kudos for a correct solution.
Source: Chili Hot GMAT