39 miles
Chat with our AI personalities
'A' is slower. 'B' is faster. 'A' covers 220 miles, while 'B' covers 310 miles. 'B' gained 90 miles on 'A'. Since 'B' gains 18 miles on 'A' in each hour, it took (90/18) = 5 hours for 'B' to gain 90 miles on 'A', so both stated distances were covered in 5 hours. Speed of 'A' = 220/5 = 44 Speed of 'B' = A+18 = 310/5 = 62
A train that travels at 40 kilometers per hour (kph) for 10 hours goes 400 kilometers. If the train goes 50 kph for 8 hours, it also travels the same 400 kilometers. The difference in speeds is 10 kph, and the difference in times is 2 hours.
Average Speed = Distance Traveled / Time TakenVelocity = Speed and direction.Speed = 140 mi/ 2hrs = (140/2) mi/hr = 70 mi/hr.Direction = WestVelocity = 70 mi/hr west
two and a half hours, 200/80 = 2.5
3 miles