Level 3
There are 3 containers, X, Y and Z that contain water with a total volume of 2050 mℓ. Given that Container X has 240 mℓ more water than Container Y and Container Z has 130 mℓ more than Container X, calculate the volume of water in Container X.
Level 3
John spent 2 h 30 min to complete his Science and English assignments. He spent 30 min more on his Science assignment than his English assignment. How long did he take to complete his English assignment?