We have 2 solid figures here and their volume = length*width * height,
So we find the volume of each solid then add them up.
Volume = length*width*height.
Take the small one first
length = 15, width = 14 and height = 16
so its volume is 14*15*16 = 3360
Large solid:
Note that its length = 15 + 16 = 31
its volume = 31*30*27 = 25,110
So the volume of the whole figure = 25,110 + 3360 = 28,470 (answer).