Question

A man travels from A to B at a speed of 30 km/hr and B to A at a speed of 20 km/hr. The total time taken for the whole journey is 5 hours. The distance from A to B is

• A. 120 km
• B. 60 km
• C. 80 km
• D. 100 km

Answer 1

Answer:

B. 60 km

Average speed - (2xy)/(x+y) = (2x30x20) / (30+20) = (2x30x20)/50 = 24km/hr Total time = 5 hrs Total distance = Speed x Time =24 x 5 = 120 km Distance from A to B = 60 km