How long did it take Tory to navigate the 60 km?

Question

Tory and Emilio's motorboats travel at the same speed. Tory pilots her boat 60 km before docking. Emilio continues for another 2 hr, traveling a total of 90 km before docking. How long did it take Tory to navigate the 60 km?

Answer 1

Emilio travels 30 km (90 - 60) in 2 hours.

This is 15 km / h.

Tory travels at the same speed and does 60 km in 4 hours.