Question

The capacity of Dr Khan's oil tank is 1,200 litres.

There are currently 650 litres of oil in the tank.
Oil costs 77.2p per litre.
Dr Khan gets a 5% discount on the price of oil.
How much does it cost Dr Khan to fill the oil tank?

Answer 1

it costs = 40337p

Explanation:

a) 1200 - 650 = 550L

b) 77.2p - 77.2 x0.05 = 73.34p per litre

c) the total money it costs to be filled the the oil tank by Dr Khan is 73.34 x 550L = 40337