3 (a) 50 Australian dollars = 540 South African rands 600 550 500 450 400 350 South African 300 rand 250 200 150 100 50 0 0 5 10 15 20 25 30 35 40 45 50 Australian dollar (i) On the grid, draw a conversion graph between Australian dollars and South African rands. [2] (ii) A watch costs 1350 South African rands. Find the cost of this watch in Australian dollars. .................... Australian dollars [2] © UCLES 2023 0580/32/M/J/23 7 (b) (i) A plane leaves Sydney at 21 48 local time to fly to Johannesburg. The flight takes 14 hours 15 minutes. The local time in Sydney is 8 hours ahead of the local time in Johannesburg. Find the local time in Johannesburg when the plane arrives. ................................................. [3] (ii) On the plane there are 315 people. The ratio of children : adults = 7 : 8. Work out the number of adults on the plane. ................................................. [2] (iii) Another plane has 420 seats. 90% of the seats are occupied. Work out the number of seats that are occupied. ................................................. [2] © UCLES 2023 0580/32/M/J/23 [Turn over 8