here goes : (any help appreciated)

a) when driven in town, a car runs at

*x* kilometres on each litre of petrol

(i) find in terms of

*x* , the number of litres of petrol used when the car is driven 200km in town

number of Liters, V = 200/x
(ii)

**when driven in town , the car runs (***x*+4) kilometres on each litre of petrol to go 200km out of town than to go 200km in town. Use this information to write down an equation involving

*x* , and show that is simplifies to :

*x^2 + 4x - 160 = 0* the **bold statement** makes little sense to me ... I understand that in town the car gets x km/L and out of town the car gets (x+4) km/L ... recheck the exact wording.
b) solve the equation

*x^2 + 4x - 160 = 0*

since x represents km,

c)Calculate total volume of petrol used when the car is driven 40km in down and then 120km out of town.