P.o.t.W. #30
■ GDC allowed ■ for HL students 33 people are in a classroom. Everyone in the room shakes hands once with everyone else in a very organized manner such that the time from the start of one handshake to the start of the next handshake is 10 seconds – and during that 10-second interval the handshake occurs during the first 2 seconds. During each 10-second interval, 12 pairs of people are shaking hands simultaneously. If...