The answer is impossible; many factors affect this evaporation.
This depends on many factors.
If you mean, when will the entire cup evaporate, you are supposed to divide 1 by 1/3.
The time it takes to evaporate half a cup of salt water depends on various factors such as temperature, humidity, air circulation, and surface area. On average, it could take several hours to a day for half a cup of salt water to fully evaporate.
It could take between one and four months for a cup of water to evaporate indoors at 65 degrees depending on the surface area and the humidity.
Volcano. The effect of water and/or light on plants. How long it takes an egg to cook. How long does it take to evaporate a cup of water.
This is not true.
Yes, it is correct.
I don't know where you are. - You may well be in a climate where it will never evaporate. Or you could be in central Sahara where it will evaporate in about 8hrs.
Indoor the temperature is higher.
Heating favors the evaporation.
It is unlikely for a cup of water to completely evaporate in just a few hours unless the conditions are extreme, such as very high temperatures or low humidity. However, some water might evaporate over time depending on the environment it's in.
you leave a cup of water out and leave it out for a few hours when you come it should evaporate