Correct Answer: (d) 120 m
Solution:Total distance of race = 1200 m
Rakesh reaches the final points in 36 seconds.
Rajesh reaches the final points in 40 seconds.
Rajesh's speed = 1200/40 = 30 m/s
Distance covered by Rajesh in 36 seconds = 30 × 36 = 1080 m.
Rakesh beats Rajesh by = 1200 - 1080 = 120m