Question

Lilly takes a train each day to work that averages 35 miles per hour. On her way home, her train ride follows the same path and averages 45 miles per hour. If the total trip takes 2.5 hours, which equation can be used to find n, the number of miles Lilly’s home is from her work?

Answer 1

the answer is 49.21875

Answer 2

n/45 + n/35 = 2.5

[7n + 9n]/35 = 787.5

16n = 787.5

n = 787.5/16

n = 49.21875 miles

Answer: 49.21875