Let the car leaving New port be called A with speed = 10 +x
Let car leaving Verona be called B with speed = x
Time = 1 hour 36 minutes = 1.6 hour
Use formula Speed = Distance / Time
Therefore Distance = Speed x Time
128 = ( 10+x)1.6 + x (1.6)
128 = 16 + 1.6x +1.6x
128 -16 = 3.2x
3.2x = 112
x = 35
This means that car A is faster with average speed of = 10 + 35 = 45 miles per hour;
whilst Car B speed is slow by average of 35 miles per hour.
