I need help with this math problem.

Question

Aphrodite traveled 144 leagues in 12 days. The she doubled her rate. How long would it take her to travel 168 leagues at this new speed?

Answer 1

Original rate = 144 leagues / 12 days = 12 leagues / day

Doubled rate = 24 leagues / day

To travel 168 leagues at 24 leagues / day would require 

 

D = (168 leagues) / (24 leagues / day) = 7 days