अस्मिता एक बैठक के लिए सुबह 8:30 बजे से 15 मिनट पहले स्कूल पहुँचती है। वह अपने उस सहकर्मी से आधा घंटा पहले पहुँची जो बैठक के लिए 40 मिनट देरी से आया है। बैठक का निर्धारित समय क्या है?

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.