Mary sold 5/8 of the 160 packets in the morning. The morning sale is found directly from the given total.<br><br>[[model:questions/solutions/q4331.png]]<br><br>• Morning sold → 5/8 × 160 = 100 packets<br>• Remainder → 160 − 100 = 60 packets<br>• Afternoon sold → 3/4 × 60 = 45 packets<br>• Total sold = 100 + 45 = 145 packets (for reference)<br><br>Mary sold 100 packets of noodles in the morning.<br>Check: Morning 100 + Afternoon 45 + Left 15 = 160 total. Afternoon = 3/4 × 60 = 45. ✓