QUESTION 1 A family with five people is living in a water-restricted area in Johannesburg. They can use 87 liters of water per person per day from the municipality. Use TABLE 1, the water tariff charges, to answer the questions that follow. Table 1 INORMAL WATER TARIFF CHARGES FOR JOHANNESBURG IN 2016/2017) Tariff Summary (in kilolitre) Tariff Rand per kilolitre (without VAT) 0-6 ke Free 7- 10 ke R7,14 11 - 15 ke R12.07 16 - 20 ke R17,65 21 - 30 ke R24,03 31 - 40 ke R25,81 > than 40 R32,27 [Source: Adapted from www. johannesburgwater. co. za Conversion: I ke = 1 000 litres and l m = 1000 litre Show that the volume of water (in kilo-litres) allowed for the whole family in 30 days is 13.05 kl.​