For standard water under standard conditions ... 1 liter of water has 1 kilogram of mass ===> 250 liters has 250 kg of mass. On the surface of the earth, 1 kg weighs 2.20462 pounds ===> 250 kg weighs (250 x 2.20462) = 551.155 pounds
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250 litres
There are 5 units of 250 ml in 1.25 litres. To convert litres to millilitres, you multiply by 1000. So, 1.25 litres is equal to 1250 ml. Dividing 1250 ml by 250 ml gives you 5 units of 250 ml in 1.25 litres.
With a ratio of 2:1 there are 2 + 1 = 3 parts.Therefore 1 part of 90 litres is 90 litres ÷ 3 = 30 litres.Thus the mixture currently contains:2 parts milk → 2 × 30 litres = 60 litres of milk; and1 part water → 1 × 30 litres = 30 litres of water.The final mixture has 1 part milk to 2 parts water.This time the mixture contains 1 part of milk = 60 litres as calculated above (adding water does not change the volume of milk in the mixture, just the ratio of milk:water).Thus the amount of water in the final mixture is 2 parts = 2 × 60 litres = 120 litres.There is already 30 litres of water (as calculated above), so 120 litres - 30 litres = 90 litres of water needs to be added to the original mixture with a ratio of 2:1 to get the final mixture with a ratio of 1:2.90 litres of water needs to be added.
0.25 litres is 1/4 of a litre or also it can be 250 ml just in case
18 litres