A family drive starts at 0 km. Their distance-time graph is: 0 to 1 hour they drive 30 km; 1 to 1.5 hours they stop for a break; 1.5 to 2.5 hours they drive and reach 95 km at 2.5 hours.
(a) Work out their average speed during the driving periods only (ignore the break time). Give your answer in km/h.
(b) Give the total time from start until they reach 95 km.
(a)Work out their average speed during the driving periods only.(2)
(b)Give the total time from start until they reach 95 km.(1)
(Total for Question 7 is 3 marks)