Oranges = 1 unit. Apples = 2 units (twice the oranges). Bananas = apples + 50 = 2 units + 50. The basket holds 400 fruits.<br><br>[[model:questions/solutions/q8214.png]]<br><br>• 1 + 2 + 2 = 5 units, plus 50 → 400<br>• 5 units → 400 − 50 = 350<br>• 1 unit (oranges) → 350 ÷ 5 = 70<br>• Apples = 2 units → 2 × 70 = 140<br><br>There are 140 apples.<br>Check: oranges 70 + apples 140 + bananas 190 = 400. ✓