Question

if the speed of a boat in still water is 13 km/h and the speed of the current is 12 km/h. Find the time taken by a boat to travel 50 km with the current?

• A. 3 hrs
• B. 2 hrs
• C. 5 hrs
• D. 6 hrs

Answer 1

Answer:

B. 2 hrs

Given:

Speed of a boat in still water = 13 km/h

Speed of the current = 12 km/h.

Formula used:

Time = distance/speed

Calculation:

Distance travelled = 50 km

Downstream speed = (13 + 12) = 25 km/h

Time = $\frac{50}{25}$

⇒ 2 hours

∴ Time taken by boat to travel 50 km with current is 2 hours.