Please kindly advise whether the answer is correct? thank you in advance.
At 10 30 a bus started travelling from Town X at an average speed of 60km/h. at 1430, a car started from the same place, travelling on the same road at a constant speed. If the car took 4 hours to catch up with the bus, find the average speed of the car
the answer 120km/h ??????
Mrs Lee took 2 h to travel from Town P to Town Q. Her average speed for the whole journey was 80km/h. For the first 1/4 of the journey, she travelled at an average speed of 60km/h. find her average speed for the remaining journey.