A car, a van, a truck and a bike are all travelling tin the same direction on the same road, each at its own onstant speed. At 10 am, the car overtakes the van; at noon, it overtakes the truck; at 2pm it overtakes the bike. At 4 pm the ruck overtakes the bike and, at 6pm, the van overtakes the ruck

a The speed of the car is 120 km/h and the speed of the truck is 80 km/h

i Fin the speeds of the van and the bike

ii Dind the time at which the van overtakes the bike

b LetcandTrepresent the speeds, in km/h, of the car and the truck, respectively

i Find the speeds of the can and the bike in terms ofcandT

ii Show that the time when the van overtakes the bike is the smae, regardless of the speeds of the car and the truck

any help would be great