Subject: General Aptitude · Chapter: Time and Distance · Exam: 2009 · Marks: · Difficulty:
A flight of Jet Airways from Delhi to Mumbai has an average speed of 700 km/hr without any stoppage, whereas a flight of Kingfisher from Delhi to Mumbai has an average speed of 560 km/hr with stoppage at Baroda. What is the average stoppage time per hour of Kingfisher flight if both the planes fly at the same speed?
(a)8 min
(b)12 min
(c)16 min
(d)24 min
Answer
Answer (as printed): B
Explanation
Due to stoppage, Kingfisher flight covers (700-560) $=140 \mathrm{km}$ less per hour. Time taken to cover $140 \mathrm{km}=\left(\frac{140}{700} \times 60\right) \min =12 \min$. Hence, stoppage time per hour = 12 min.