A lorry tank was 4/5 full of petrol when the gauge indicated 72 litres what was the full capacity of the Tank in litre

1 answer

To find the full capacity of the tank, you can set up a proportion using the information given.

Let x be the full capacity of the tank in litres.

Since the tank was 4/5 full when the gauge indicated 72 litres, we can set up the following proportion:

(4/5)x = 72

To solve for x, multiply both sides by 5 to get rid of the fraction:

4x = 360

Now, divide both sides by 4 to solve for x:

x = 360 / 4
x = 90

Therefore, the full capacity of the tank is 90 litres.