Work backwards from the 60 packets left. After giving 1/3 to neighbour, 2/3 remained = 60.<br><br>[[model:questions/solutions/q4333.png]]<br><br>• Left 60 = 2/3 after neighbour → 1/3 = 30, total before neighbour = 90<br>• After neighbour 90 = 3/5 after afternoon → 1/5 = 30, total before afternoon = 150<br>• After afternoon 150 = 5/8 of total → 1/8 = 30, total at first = 240<br><br>Princess cooked 240 packets of noodles at first.<br>Check: Morning 3/8 × 240 = 90. Remainder = 150. Afternoon 2/5 × 150 = 60. Remainder = 90. Neighbour 1/3 × 90 = 30. Left = 60. ✓