Ex 9: Delivery Charge Calculator

Problem​

We’re building a delivery system for an e-commerce platform. Depending on the distance of the customer’s address, different delivery charges apply.

• Define calculate_delivery_charge(distance) that accepts a distance in kilometers.
• Return a specific delivery-charge string based on the distance range.
• Preserve the correct boundaries and avoid overlapping ranges.

Rules​

• Define calculate_delivery_charge(distance: float) -> str.
• If distance is 2 km or less, return "Delivery charge: 0".
• If distance is greater than 2 km but not more than 5 km, return "Delivery charge: 30".
• If distance is greater than 5 km but not more than 10 km, return "Delivery charge: 50".
• If distance is more than 10 km, return "Delivery not available for our location.".

Boilerplate​

Copy below code and paste to our IDE for head start.

# Write our code inside this function
def calculate_delivery_charge(distance: float) -> str:
    pass # remove this

# Call with test data
print(calculate_delivery_charge(3.5))
print(calculate_delivery_charge(15))

Expected Output​

Delivery charge: 30
Delivery not available for our location.

Solution​

Only view the solution after trying our best.

def calculate_delivery_charge(distance: float) -> str:
    if distance <= 2:
        return "Delivery charge: 0"
    elif distance <= 5:
        return "Delivery charge: 30"
    elif distance <= 10:
        return "Delivery charge: 50"
    return "Delivery not available for our location."

# Test calls
print(calculate_delivery_charge(3.5))
print(calculate_delivery_charge(15))