Question

A motor cycle gives an average of 45km per litre.If the cost of petrol is 20 rs per litre.The amount required to complete a journey of540km is

Answer 1

The cost required for completing the journey is equal to
$rs \: \: 240$



Please refer the above photograph for the used process.




KEY POINTS TO REMEMBER :-


☸️ The average distance that a motor vehicle covers in 1 litre of energy fuel is known to be as the mileage of the motor vehicle.

Hence,

In this case :-

Mileage is equal to 45 km per litre




☸️ Total Amount of Petrol required is equal to total distance to be covered divided by the mileage of the motor vehicle.

Algebrically :-

$petrol \: needed = \dfrac{distance}{mileage}$



☸️ Total costing is equal to the product of the amount of petrol and cost of each litre of petrol.

Algebrically :-

$cost = petrol(amount)\\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \times cost(of \: 1 \: litre)$



Hence,

The answer is Rs 240 for 540 Km distance at a mileage of 45 Km per litre and coat of 1 litre petrol as Rs 20




Thanks!