17 छात्रों की एक पंक्ति में, जब राकेश को बाईं ओर तीन स्थान स्थानांतरित किया गया, तो वह बाएं छोर से 7वां हो गया। पंक्ति के दाएं छोर से उसकी पहले की स्थिति क्या थी?

Kartik ranked 19th from the top and 54th from the bottom in his class. How many students are there in his class?

Mr. Hepa ranked 22nd from the bottom and 57th from the top in his class. How many students are there in his class?