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

The first step in solving this problem is to compute for the original rate of Aphrodite.

144 leagues / 12 days = 12 leagues/day (original rate)

It was stated in the problem that she doubled her rate which she means she has a new rate of 24 leagues/day (12 x 2).

168 leagues / 24 leagues/day = 7

Therefore, it would take her 7 days to travel 168 leagues at her new speed.

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