A petrol tank that is 3/4 full holds Y litres.
How many litres can the tank hold when full?
volumeTank*3/4 = Y
volumeTank=4/3 Y
1 litre
To find out how many litres the petrol tank can hold when full, we need to analyze the information given in the question.
According to the question, the petrol tank is currently 3/4 full. Therefore, the amount of petrol in the tank can be calculated as:
Petrol in the tank = (3/4) * Y
We also need to find out how many litres the tank can hold when it is completely full. Let's represent this value as X.
Thus, we have the equation:
Petrol in the tank = X
Now, to determine X, we need to find the relationship between the amount of petrol in the tank when it is 3/4 full and when it is completely full.
From the given information, we know that the petrol in the tank is 3/4 of the tank's capacity. Therefore, we can set up the equation:
(3/4) * Y = X
To solve for X, we can multiply both sides of the equation by 4/3 (the reciprocal of 3/4):
X = (4/3) * (3/4) * Y
Simplifying the equation, we get:
X = Y
So, the tank can hold Y litres when it is completely full.