diff --git a/solutions/typescript/resistor-color-duo/1/resistor-color-duo.ts b/solutions/typescript/resistor-color-duo/1/resistor-color-duo.ts
new file mode 100644
index 0000000..dfab5a5
--- /dev/null
+++ b/solutions/typescript/resistor-color-duo/1/resistor-color-duo.ts
@@ -0,0 +1,16 @@
+export function decodedValue(colors:string[]):number {
+  const colourCode: {[key:string]:number}= {
+    "black": 0,
+    "brown": 1,
+    "red": 2,
+    "orange": 3,
+    "yellow": 4,
+    "green": 5,
+    "blue": 6,
+    "violet": 7,
+    "grey": 8,
+    "white": 9
+  };
+  return colourCode[colors[0]]*10 + colourCode[colors[1]];
+
+}