Update solver_ratio.py

solver_ratio.py

@@ -44,11 +44,16 @@ def solve_ratio(text: str) -> Optional[SolverResult]:
             ],
         )
 
-    # Pattern 2: "a:b = 2:3 and total is 40"
+    # Pattern 2: "a:b = 2:3 and total is 40" / "there are 40 students in total"
     m = re.search(
-        r"(\d+)\s*:\s*(\d+).*?(?:sum|total).*?(\d+(?:\.\d+)?)",
+        r"(\d+)\s*:\s*(\d+).*?(?:total|sum)\s*(?:is|of)?\s*(\d+(?:\.\d+)?)",
         lower,
     )
+    if not m:
+        m = re.search(
+            r"(\d+)\s*:\s*(\d+).*?(\d+(?:\.\d+)?).*?(?:in total|total)",
+            lower,
+        )
     if m:
         a = float(m.group(1))
         b = float(m.group(2))