Speed, Time and Distance... Points

# Speed= Distance/ Time 

# Time = Distance/ Speed 

# Km/hr to m/s conversion:

   X Km/hr = (x × 5/18) m/s 

# m/s to km/hr conversion: 

   X m/s = (x × 18/5) km/hr 

# If the ratio of the speeds of A and B is a : b, then the ratio of the time taken by them to cover the same distance is 1/a : 1/b or b : a 

# Suppose a man covers a certain distance at x km/hr and an equal distance at y km/hr. Then,the average speed during the whole journey is  

(2xy/x+y) km/hr

Thank you 

Regards SSA Sai Group