200
Chapter 19. "Stanley was thankful that there were no racial problems"
Out of the boys in Group D, which of the boys were of a "black", "white" or of "Hispanic" background.
[X-Ray, Stanley, Zero, Armpit, Magnet, Squid & Zig Zag]
X-Ray, Armpit & Zero = "black"
Stanley & Zig Zag = "White"
Magnet = Hispanic