Gummies = 1 unit. Chocolates = 3 units (3 times the gummies). Lollipops = chocolates + 70 = 3 units + 70. There are 490 candies in all.<br><br>[[model:questions/solutions/q8222.png]]<br><br>• 1 + 3 + 3 = 7 units, plus 70 → 490<br>• 7 units → 490 − 70 = 420<br>• 1 unit (gummies) → 420 ÷ 7 = 60<br>• Chocolates = 3 units → 3 × 60 = 180<br><br>There are 180 chocolates.<br>Check: gummies 60 + chocolates 180 + lollipops 250 = 490. ✓