diff --git a/source/review/Exam-1-Review.ptx b/source/review/Exam-1-Review.ptx
index 224ddcd..23c72e4 100644
--- a/source/review/Exam-1-Review.ptx
+++ b/source/review/Exam-1-Review.ptx
@@ -1927,7 +1927,7 @@
 
       <answer>
         <p>
-          <m>5/27 \approx 0.227</m>.
+          <m>5/22 \approx 0.227</m>.
         </p>
       </answer>
     </exercise>