217k views
4 votes
PAINTING A WALL

Program Specifications :

Write a program to calculate the cost to paint a wall. Amount of required paint is based on the wall area. Total cost includes paint and sales tax.

Step 1. Read from input wall height, wall width, and cost of one paint can (floats). Calculate and output the wall's area to one decimal place using print(f"Wall area: {wall_area:.1f} sq ft");.

Ex: If the input is:

12.0
15.0
29.95
the output is:

Wall area: 180.0 sq ft

Step 2. Calculate and output the amount of paint needed to three decimal places. One gallon of paint covers 350 square feet.

Ex: If the input is:

12.0
15.0
29.95
the output is:

Wall area: 180.0 sq ft
Paint needed: 0.514 gallons

Step 3. Calculate and output the number of 1 gallon cans needed to paint the wall. Extra paint may be left over. Hint: Use ceil() from the math module to round up to the nearest gallon (int).

Ex: If the input is:

12.0
15.0
29.95
the output is:

Wall area: 180.0 sq ft
Paint needed: 0.514 gallons
Cans needed: 1 can(s)

Step 4. Calculate and output the paint cost, sales tax of 7%, and total cost. Dollar values are output with two decimal places.

Ex: If the input is:

8.0
8.0
49.20
the output is:

Wall area: 64.0 sq ft
Paint needed: 0.183 gallons
Cans needed: 1 can(s)
Paint cost: $49.20
Sales tax: $3.44
Total cost: $52.64

1 Answer

4 votes

Answer: import math

# Step 1: Read input values and calculate wall area

wall_height = float(input())

wall_width = float(input())

paint_cost = float(input())

wall_area = wall_height * wall_width

print(f"Wall area: {wall_area:.1f} sq ft")

# Step 2: Calculate amount of paint needed

paint_needed = wall_area / 350

print(f"Paint needed: {paint_needed:.3f} gallons")

# Step 3: Calculate number of cans needed

cans_needed = math.ceil(paint_needed)

print(f"Cans needed: {cans_needed} can(s)")

# Step 4: Calculate and output costs

paint_cost_total = paint_cost * cans_needed

sales_tax = 0.07 * paint_cost_total

total_cost = paint_cost_total + sales_tax

print(f"Paint cost: ${paint_cost_total:.2f}")

print(f"Sales tax: ${sales_tax:.2f}")

print(f"Total cost: ${total_cost:.2f}")

Step-by-step explanation:

The input() function is used to read the wall height, wall width, and cost of one paint can as floats.

The wall area is calculated by multiplying the wall height and width, and then printed using formatted string literals to one decimal place.

The amount of paint needed is calculated by dividing the wall area by 350, the amount of square feet that one gallon of paint can cover. The result is printed to three decimal places.

The number of cans needed is calculated using the math.ceil() function to round up the value of paint_needed to the nearest integer.

The total cost of the paint is calculated by multiplying the cost of one paint can by the number of cans needed. The sales tax is calculated as 7% of the paint cost total. The total cost is calculated by adding the paint cost total and sales tax. All of these values are printed using formatted string literals to two decimal places.

Note: It's important to ensure that the input values are entered correctly, including the decimal points.

Note: was written using python

Step-by-step explanation:

User Chintan Raghwani
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.