diff --git a/solutions/go/cars-assemble/1/cars_assemble.go b/solutions/go/cars-assemble/1/cars_assemble.go
new file mode 100644
index 0000000..c03484c
--- /dev/null
+++ b/solutions/go/cars-assemble/1/cars_assemble.go
@@ -0,0 +1,21 @@
+package cars
+
+// CalculateWorkingCarsPerHour calculates how many working cars are
+// produced by the assembly line every hour.
+func CalculateWorkingCarsPerHour(productionRate int, successRate float64) float64 {
+    return float64(productionRate) * (successRate / 100)
+}
+
+// CalculateWorkingCarsPerMinute calculates how many working cars are
+// produced by the assembly line every minute.
+func CalculateWorkingCarsPerMinute(productionRate int, successRate float64) int {
+    return int(CalculateWorkingCarsPerHour(productionRate,successRate) / 60)
+}
+
+// CalculateCost works out the cost of producing the given number of cars.
+func CalculateCost(carsCount int) uint {
+    groups := carsCount / 10
+    remaining := carsCount % 10
+    cost := groups * 95000 + remaining * 10000
+    return uint(cost)
+}