Asmita reaches school for a meeting 15 minutes before 8:30 am. She reached half an hour earlier than her colleague who is 40 minutes late for the meeting. What is the scheduled time of the meeting?

If a WLL system's protocol stack consists of 4 layers, and it takes an average of 1.5 milliseconds for each layer to process a packet, how long does it take for the entire stack to process a single packet?

Rishi left for office from his home at 9:30 AM and reached office after 1 hour 15 minutes. His working hours were 9 hours (including a 1-hour lunch break), after which he went shopping. Finally, he reached home 45 minutes after leaving the office. Find the total time he spent outside his home.