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 & explanation
Correct answer: option 1
Speed = \(\frac{Distance }{time }\)
= \(\frac{12 × 60 }{12 }\)
= 60 km/h
Reduced speed = 60 - 5 = 55 km/h
Time to cover 22 km= \(\frac{22 }{55 }\)
= \(\frac{2 }{5}\) hour
= 24 minutes