Letter of Refusal
The Principal
S.K.M. College
Mahboob Nagar
Subject: Regret for Inability to Accept Invitation
Dear Sir/Madam,
I am honored by your invitation to be the keynote speaker at the Annual Conclave on ‘Student Health – The Emotional Impact of Social Media’ at your esteemed institution. However, I regret to inform you that I am unable to accept the invitation due to prior professional commitments. I sincerely appreciate the opportunity and hope to contribute in the future. Wishing you great success with the event.
Yours sincerely,
Shyam Sundar
Professor of Psychology
A cylindrical tank of radius 10 cm is being filled with sugar at the rate of 100π cm3/s. The rate at which the height of the sugar inside the tank is increasing is: