Question

The average petrol consumption of a vehicle is 1 gallon per 35 km. The cost of 1 litre of petrol is $49. Fund the cost of petrol for a journey of 280 km.

(take 1 gallon=4.5 litres)

Answer 1

Explanation:

Total petrol consumption of the journey=

Total distance travelled ÷ Average petrol consumption

`= 280 / 35 \\ = 8 \: gallons`

Given 1 gallon = 4.5 litres,

`8 \: gallons \: = 8 * 4.5 \\ = 36 \: litres`

Total cost of petrol for this particular journey = Petrol consumed x cost of 1 litre of petrol

`= 4.5 * 49 \\ = 220.50 \: dollars`