Exercise 4: Shop Calculator

Your Task

Build a function for a Roblox shop that calculates the total cost of buying multiple items, with a bulk discount.

Write a function shop_total(price, quantity) that:

• Takes the price of one item and how many the player wants to buy
• Returns the total cost
• If buying 5 or more, apply a 10% discount to the total

Starter Code

def shop_total(price, quantity):
    # Your code here
    pass

# Test your function:
print(shop_total(100, 3))   # Should print: 300
print(shop_total(100, 5))   # Should print: 450.0  (10% off 500)
print(shop_total(200, 10))  # Should print: 1800.0 (10% off 2000)
print(shop_total(50, 1))    # Should print: 50

Hints

def shop_total(price, quantity):
    total = price * quantity
    if quantity >= 5:
        total = total * 0.9
    return total

Bonus

Write a function receipt(item_name, price, quantity) that prints a receipt like:

--- Receipt ---
Item: Diamond Sword
Price: 100 each
Quantity: 5
Total: 450.0 (10% discount applied!)

Use your shop_total function inside it!

def receipt(item_name, price, quantity):
    total = shop_total(price, quantity)
    print("--- Receipt ---")
    print(f"Item: {item_name}")
    print(f"Price: {price} each")
    print(f"Quantity: {quantity}")
    if quantity >= 5:
        print(f"Total: {total} (10% discount applied!)")
    else:
        print(f"Total: {total}")