Two-fifths 2819

The petrol tank is filled to three-quarters of its volume. After running out of 875 liters of gasoline, it was filled to only two-fifths of the volume. How many liters does a full tank have?

Correct answer:

x =  2500 l

Step-by-step explanation:


3/4x-875 = 2/5 x

3/4·x-875 = 2/5·x

7x = 17500


x = 17500/7 = 2500

x = 2500

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