The amount of water in the pan at start is 320 ml.
It takes 16 days until no water remains in the pan.
Step-by-step explanation:
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.
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.
In can be determined that :
To find the amount of water 'x' in the pan at start :
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.
To find the no. of days until no water remains in the pan :
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.
