Two men walk from a place at speeds of 9 km/h and 12 km/h, respectively. The first man takes 20 minutes more than the second one to cover the journey. Find the distance of the journey.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 12 km.
Let's assume the total distance = D
According to the question,
⇒ 4D - 3D = 12
D = 12 km