🍍 Project: Fruit Shop Calculator¶
🎯 Objective:¶
Simulate a simple fruit shop checkout where you:
- Add and subtract quantities
- Multiply for total cost
- Divide to find average price
-
Use modulus
%, exponentiation**, and floor division//for calculations
🧾 Task Description:¶
You're buying:
- 3 apples at SGD2 each
- 5 bananas at SGD1.5 each
- 4 durians at SGD15 each
You're also running a promotion:
- You get 1 free apple for every 2 bought
- Apply a 9% tax
- Show average price per fruit
- Show cost per fruit rounded down and leftover cents
Starter code from ChatGPT¶
Fruit prices¶
apple_price = 2 banana_price = 1.5 durian_price = 15
Quantities¶
apples_bought = 3 bananas_bought = 5 durians_bought = 4
Free apples¶
free_apples = apples_bought // 2 # 1 free for every 2 bought total_apples = apples_bought + free_apples
Total cost before tax¶
cost = (apples_bought * apple_price) + (bananas_bought * banana_price) + (durians_bought * durian_price)
Apply tax (9%)¶
tax_rate = 0.09 tax_amount = cost * tax_rate total_cost = cost + tax_amount
Average price per fruit (including free apples)¶
total_fruits = total_apples + bananas_bought + durians_bought average_price = total_cost / total_fruits
Floor division and modulus for durian price¶
dollar_part = durian_price // 1 cent_part = durian_price % 1
Exponentiation (bonus): Square the number of bananas¶
banana_power = bananas_bought ** 2
Print results¶
print(f"Free apples: {free_apples}") print(f"Total cost after tax: ${total_cost:.2f}") print(f"Average price per fruit: ${average_price:.2f}") print(f"Durian cost split: ${dollar_part} + {cent_part*100:.0f} cents") print(f"Bananas to the power of 2: {banana_power}")
The next section accepts user input to function as a practical fruit cost calculator.
# Inputs for fruit prices
str_apple_price = input('Enter the price of a single apple: ')
str_banana_price = input('Enter the price of a single banana: ')
str_durian_price = input('Enter the price of a single durian: ')
# Inputs for fruits bought
str_apples_bought = input('How many apples did you buy? ')
str_bananas_bought = input('How many bananas did you buy? ')
str_durians_bought = input('How many durians did you buy? ')
# Fruit prices
apple_price = float(str_apple_price)
banana_price = float(str_banana_price)
durian_price = float(str_durian_price)
# Quantities
apples_bought = int(str_apples_bought)
bananas_bought = int(str_bananas_bought)
durians_bought = int(str_durians_bought)
# Free apples
free_apples = apples_bought // 2 # 1 free for every 2 bought
total_apples = apples_bought + free_apples
# Total cost before tax
cost = (apples_bought * apple_price) + (bananas_bought * banana_price) + (durians_bought * durian_price)
# Apply tax (9%)
tax_rate = 0.09
tax_amount = cost * tax_rate
total_cost = cost + tax_amount
# Average price per fruit (including free apples)
total_fruits = total_apples + bananas_bought + durians_bought
average_price = total_cost / total_fruits
# Floor division and modulus for durian price
dollar_part = durian_price // 1
cent_part = durian_price % 1
# Exponentiation (bonus): Square the number of bananas
banana_power = bananas_bought ** 2
# Print results
print(f"\n=== Fruit Shop Summary ===")
print(f"Free apples received: {free_apples}")
print(f"Total cost after 9% tax: SGD{total_cost:.2f}")
print(f"Average price per fruit: SGD{average_price:.2f}")
print(f"Durian price breakdown: SGD{int(dollar_part)} and {int(cent_part * 100)} cents")
print(f"Bananas squared: {banana_power}")
=== Fruit Shop Summary === Free apples received: 6 Total cost after 9% tax: SGD148.78 Average price per fruit: SGD4.96 Durian price breakdown: SGD15 and 0 cents Bananas squared: 25