An express train travelled at an average speed of 100 km/hr, stopping for 3 minutes after every 75 km. How… · ABC26GN3625
Subject: General Aptitude · Chapter: Time and Distance · Exam: M.A.T. 2003
An express train travelled at an average speed of 100 km/hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?
(a)6 hrs 21 min
(b)6 hrs 24 min
(c)6 hrs 27 min
(d)6 hrs 30 min
Answer
Answer (as printed): A
Explanation
Time taken to cover $600 \mathrm{km}=\left(\frac{600}{100}\right) \mathrm{hrs}=6 \mathrm{hrs}$.Number of stoppages $=\frac{600}{75}-1=7$. Total time of stoppage $=(3 \times 7) \mathrm{min}=21 \mathrm{min}$. Hence, total time taken $=6 \mathrm{hrs} 21 \mathrm{min}$.