diff --git a/1518. Water Bottles b/1518. Water Bottles
new file mode 100644
index 0000000..95030ab
--- /dev/null
+++ b/1518. Water Bottles	
@@ -0,0 +1,15 @@
+class Solution {
+public:
+    int numWaterBottles(int numBottles, int numExchange) {
+
+        int cnt = 0;
+        cnt = cnt + numBottles;
+        while(numBottles >= numExchange) {      
+            int rem = numBottles % numExchange;
+            int div = numBottles / numExchange;
+            numBottles = div + rem;
+            cnt = cnt + div;
+        }
+        return cnt;
+    }
+};