A train covers a distance of 12 km in 12 minutes. If its speed is decreased by 5 km/h, then the time taken by it to cover the distance of 22 km will be:

Answer: Option A

Initial speed = $$\frac{12\times 60}{12}$$  = 60 km/h
New speed = 60 - 5 = 55 km/h
Time taken to cover 22 km = $$\frac{22\times 60}{55}$$  = 24 min