Question 631011
Time is distance divided by speed
ie Time = Distance / Speed
= 100 /V with the answer measured in hours.

eg if speed is 100 kmh^-1 then time = 100/100 = 1 hour.
If speed  = 50 kmh^-1 then time = 100/50 = 2 hours.
If speed  = 2 kmh^-1 then time = 100/2 = 50 hours.