diff --git a/DynamoDB/Practice/Read and Write Units - Set 3.md b/DynamoDB/Practice/Read and Write Units - Set 3.md
index 17232ea..2f3c862 100644
--- a/DynamoDB/Practice/Read and Write Units - Set 3.md	
+++ b/DynamoDB/Practice/Read and Write Units - Set 3.md	
@@ -16,7 +16,7 @@
 ## Questions
 ### 1. You normally write six separate 1.8 KB items every second. How many WCUs are required?
 Writing to DynamoDB splits writes into 1KB blocks. 
-$1KB \times 6Hz = 12WCU$
+$2KB \times 6Hz = 12WCU$
 
 Answer: 12 WCUs