She had only slept for half an hour when the repeated knocking on the door woke her up. 

"Mom!" Xenia called out in frustration.

"Better start solving the question. Remember the meeting with your teacher." her mother's loud voice was heard.

"Okay, I've heard you. I've begun already."

"Open the door and keep it unlocked. I'll randomly check on you. If I find you dozing off, you're finished." her mom warned.

"Seriously..." Xenia sighed and got off the bed. Then she headed to the door and opened it. "Mom..."

Her mum didn't say a word and just walked away. Xenia sighed and left the door ajar. It was time to...