Manoj ranked 45 from the top and 34 from the bottom in his class. How many students are there in his class?

Manoj ranked 45 from the top and 34 from the bottom in his class. How many students are there in his class?
मनोज अपनी कक्षा में शीर्ष से 45वें  पर और नीचे से 34वें स्थान पर है। उसकी कक्षा में कितने विद्यार्थी हैं?