Update solver_router.py

solver_router.py

@@ -7,6 +7,11 @@ from quant_solver import solve_quant
 from solver_weighted_average import solve_weighted_average
 
 def route_solver(text: str):
+
+    result = solve_weighted_average(text)
+    if result:
+        return result
+
     lower = (text or "").lower()
 
     # percent problems