Cows are $$\frac{3}{10}$$ of the sheep: sheep = 10 units, cows = 3 units = 87. There are 7 units more sheep than cows.<br><br>[[model:questions/solutions/q3437.png]]<br><br>• 3 units → 87 cows<br>• 1 unit → 87 ÷ 3 = 29<br>• More sheep → 7 units = 7 × 29 = 203<br><br>There are 203 more sheep than cows.<br>Check: sheep 290 − cows 87 = 203. ✓