MAT 2013 Question Paper

Question 74

The fuel indicator in a car shows $$\frac{1}{5}$$th of the fuel tank as full. When 22 more litres of fuel are poured into the tank, the indicator rests at three-fourth of the full mark. What is the capacity of the fuel tank?

Solution

Let the capacity of the fuel tank be x liters.

According to the question:

x/5 + 22 = 3/4x

On solving, we get

x = 40

So, 

Capacity of the fuel tank = 40 litres.


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