Total no. of seats = 150
If each person gets 2 A4 sheets, no. of A4 sheets for 150 people = 150×2 = 300
No. of people in the room = 114
No. of A4 sheets distributed = 114×2 = 228
No. of seats left = 150-114 = 36
No. of A4 sheets left = 300-228 = 72 (or) 36×2 =72