Naidu's Transport Company hires buses out to schools for transport. The following table shows the cost for hiring a bus with a seating capacity of 50: Cost of hiring a 50-seater bus from Naidu's Transport Company Return distance travelled Up to and including 50 km Between 50km and 100km 100km and more Cost of a return trip R1 300 R1 700 A1 700+ R15 for each km over 100km Use the information above to answer the following questions: 3.1. Calculate the cost of a return trip if: a) The one-way distance is 45 km. b) The return distance is 136 km. 3.2. Complete the formula below which can be used to calculate the cost in rand for a return
trip greater than 100 km. Cost (in rand) = ... 3.3. Using the above formula, calculate the distance travelled for a return trip costing R1 650. 3.4. The debating club of Suncrest high school must transport 77 of its members to a debate that is to be held 20 km away from the school. The club has the option of hiring buses from Naidu's Transport Company or using minibuses from a taxi company. The taxi company charges R30 per head, as long as there are at least 10 passengers in the minibus. Each minibus can accommodate a maximum of 15 passengers. a) Analyse the information and determine the minimum number of minibuses that would be needed to transport the 77 members of the debating club. b) Identify the cheaper option of transporting the 77 members. Show ALL your calculations.​