1. Martin picked up the photo. "Your two teenage boys, eh? Fine looking kids," he commented. "How old are they?" "A teaser for you," Nigel replied. "There's also Susan, our youngest child. The sum of their three ages is one less than three times the age of the second child, and Susan is two years younger than half the age of the eldest." What were the three ages?

Susan is age 7, the boys are 13 and 18

Susan is age 6, the boys are 13 and 16

Susan is age 8, the boys are 14 and 19