In a race of 1200 m, Ram can beat Shyam by 200 m or by 20 sec. What must be the speed of Ram?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 12 m/s
According to the question
The speed of Shyam = 200/20 = 10 m/s
The time taken by Shyam to complete the race of 1200m = 1200/10 = 120 sec
Ram takes 20 sec less than Shyam
Ram will take 100 sec to cover 1200 m
Hence, the speed of Ram = 1200/ 100 = 12 m/s.