38 liters of gasoline were poured into the tank, after which 5% of the tank’s capacity remained unfilled.
| December 5, 2020 | education
38 liters of gasoline were poured into the tank, after which 5% of the tank’s capacity remained unfilled. How much gasoline do I need to add to the tank to fill it?
x – 100%
38 – 95% (100% -5%) – how many percent is already filled
Find x using the cross method:
x = (100 * 38) / 95 = 40 l – this is the total volume of the tank,
40-38 = 2 l
Answer: 2 liters must be added to the tank to fill it.
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