Correct Answer: Option C
Relative speed = (60+ 90) km/hr
= (150 x (5/18)) m/sec
= (125/3) m/sec.
Distance covered = (1.10 + 0.9) km
= 2 km = 2000 m.
Required time = (2000 x (3/125)) sec
= 48 sec.
Download our app for free and access thousands of MCQ questions with detailed solutions