SMALLEST numbers is = 15⇒ Sum of 6 smallest numbers = 15 × 6 = 90Mean of 14 numbers = 17⇒ Sum of 14 numbers = 14 × 17 = 238 ⇒ Sum of 8 largest numbers = 238 – 90 = 148∴ AVERAGE of 8 largest numbers = 148/8 = 18.5