SOLUTION STEPS (Set 1 — P4 Whole Numbers):
Question ID: 3227

  1. Let Hector be 1 unit. Felix = 1 unit + 3, Kale = 1 unit - 8.
  2. Total: 3 units - 5 = 412. So 3 units = 417.
  3. 1 unit = 139. Hector is 139 cm tall.