The larger number is 11 units and the smaller is 1 unit, so their difference is 10 units = 19.5.<br><br>[[model:questions/solutions/q4625.png]]<br><br>• Difference → 11 units − 1 unit = 10 units → 19.5<br>• 1 unit → 19.5 ÷ 10 = 1.95<br>• Larger → 11 units = 11 × 1.95 = 21.45<br><br>The larger number is 21.45.<br>Check: 21.45 − 1.95 = 19.5, and 21.45 = 11 × 1.95. ✓