The three girls have the same mass, so the total bar is 3 equal units = 114 kg.

3 girls111total = 114 kg

Plain numbers are given; italic underlined numbers are worked out.

  1. 3 units → 114 kg
  2. 1 unit → 114 ÷ 3 = 38 kg

Each girl is 38 kg.

Check: 3 × 38 = 114 kg. ✓