Ajay can walk 3km in 1 hour. In how many hours he can walk 50km?  Choose the correct choice from the following answers.
A) 5 hrs
B) 16.6 hrs
C) 15.6 hrs
D) 20.4 hrs
E) 30 hrs

Rationale: "1 hour he walk 3 km he walk 50 km in = 50 / 3 * 1 = 16.6 hours answer is b"
Answer: B