Formula for volume of room

Question

An architect design a room length 16 ft,width 14 ft and height 10 ft . What is the volume and if he adds 2ft to length and width how much greater is the volume of the room?

Answer 1

V=l*w*h

V=16*14*10

V=2240 cubic feet

 

V=18*16*10

V=2880 cubic feet

2880-2240=640 cubic feet greater