Factors affecting transpiration

Four leafy shoots are placed in identical measuring cylinders, each containing 80 cm³ of water covered with a thin layer of oil to prevent evaporation from the water surface. They are left for 24 hours under the following conditions:

Shoot   Humidity   Temperature / °C
1       low        15
2       low        30
3       high       15
4       high       30

After 24 hours, the volume of water left in cylinder 1 is 60 cm³ and in cylinder 3 is 75 cm³.

What is the most likely volume of water left in cylinder 2?