Total books read = average per week × number of weeks.<br><br>
[[model:questions/solutions/q10246.png]]<br><br>
• Total books in 8 weeks = 8 × 3 = 24 books<br>
• Books in first 7 weeks = Total − books in last week<br>
• 24 − 1 = 23 books<br><br>
Emma read 23 books during the first 7 weeks.<br>
Check: 23 + 1 = 24; 24 ÷ 8 = 3. ✓