From Rotherham to London is 156 miles
Kim's average speed is 60 miles per hour
time spent on the road is distance/speed
time spent in hours = 156/60= 2.6 hours
if he left at 7.30 am then he will reach London at 7:30 +2.36= 11.06am
Kim will arrive in London at 11.06am which is later than 10.00am