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To obtain 4 liters using 3-liter and 5-liter jugs, we want to reach the point (4, 0). From the point (4, 0), there are only two reversible actions: filling the empty 3-liter jug to full from the tap (4,3), or transferring 1 liter of water from the 5-liter jug to the 3-liter jug (1,3). Therefore, there are only two solutions to the problem:
[4] [5] The mouthful was still a unit of liquid measure during Elizabethan times. [6] The principal Egyptian standards from small to large were the ro, hin, hekat , and khar.) [ 7 ] Because of the lack of official definitions, many of these units will not have a consistent value.
In addition, the "cook's cup" above is not the same as a "coffee cup", which can vary anywhere from 100 to 200 mL (3.5 to 7.0 imp fl oz; 3.4 to 6.8 US fl oz), or even smaller for espresso. In Australia, since 1970, metric utensil units have been standardized by law, and imperial measures no longer have legal status.
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The cup is a cooking measure of volume, commonly associated with cooking and serving sizes.In the US, it is traditionally equal to one-half US pint (236.6 ml). Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups may be used, with a metric cup commonly being rounded up to 240 millilitres (legal cup), but 250 ml is also used depending on the ...
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In the U.K., the use of the fluid ounce as a measurement in trade, public health, and public administration was circumscribed to a few specific uses (the labelling of beer, cider, water, lemonade and fruit juice in returnable containers) in 1995, and abolished entirely in 2000, by The Units of Measurement Regulations 1994.
It's important to note that the researchers defined one cup of tea as 200 ml, which is right below 7 oz, so consuming three of their "cups" equates to roughly 21 fl oz or 2.6 eight-ounce U.S. cups.