Question

In a race of 1km A defeat b by 36 m or 18s. How much time ( sec) did A take to complete the full distance​

Answer 1

Answer:

This means, B takes 4 seconds to run 40 metres

=> B takes 4/40=1/10 seconds to run 1 metre

=> B takes 1/10×1000=100 seconds to run 1000 metre