Compare Pattern Solutions Practice Test

Carlos and Keisha need night signals at a campout when it is dark. Solution A uses flashlight blinks (1 blink = “OK,” 2 blinks = “come here,” 3 blinks = “help”). Solution B uses hand signs (thumbs-up = “OK,” waving = “come here,” arms crossed = “help”). Comparing these solutions, which works best in dark conditions?

Fatima and Amir must send 8 different messages during a team game. Solution A uses claps (1 clap = “pass,” 2 claps = “shoot,” 3 claps = “guard,” 4 claps = “switch,” and more counts for more messages). Solution B uses a small set of 3 arm signals (point left, point right, hands on head) that can be combined. Comparing these solutions, which is better for the number of messages?