The amount of water in the pan at start is 320 ml.
It takes 16 days until no water remains in the pan.
<u>Step-by-step explanation:</u>
Julio placed a pan of water in his refrigerator to see how long it would take to evaporate.
Let, the volume of water in the the pan during the start be 'x' milliliters.
- After 2 days, he found that the water in the pan got reduced to 280 ml
- After 4 days, he found that the water in the pan got reduced to 240 ml.
Therefore, the difference in the volume of water within 2 days can be calculated using the given data.
The amount of water reduced in 2 days = volume of water remained after 2 days - volume of water remained after 4 days
⇒ 280 - 240 = 40 milliliters.
<u>In can be determined that :</u>
- For 2 days the water gets evaporated by 40 milliliters.
- Thus, Each day 20 milliliters of the water gets evaporated from the pan.
<u>To find the amount of water 'x' in the pan at start :</u>
Before 2 days, the water in the pan is 40 milliliters greater than the water in the pan after 2 days.
The amount of water after 2 days is already given in the question itself which is 280 ml.
⇒ x = 280 + 40
⇒ x = 320 ml.
The amount of water in the pan at start is 320 ml.
<u>To find the no. of days until no water remains in the pan :</u>
The number of days at which all the water gets evaporated is calculated by,
⇒ Total milliliters in the pan at start / No.of milliliters evaporated per day
⇒ 320 ml / 20 ml
⇒ 16 days.
It takes 16 days until no water remains in the pan.
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