diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index e340ac2f..f2050531 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -29412,7 +29412,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "$y=\\begin{cases} \\dfrac{24}5 x, & 0<x\\le 5, \\\\ \\dfrac{24}5-\\dfrac{24}5 x, & 5\\le x<10.\\end{cases}$",
+        "ans": "$y=\\begin{cases} \\dfrac{24}5 x, & 0<x\\le \\dfrac 52, \\\\ \\dfrac{24}5-\\dfrac{24}5 x, & \\dfrac 52\\le x<5.\\end{cases}$",
         "solution": "",
         "duration": -1,
         "usages": [