Question

Using Python...

Be sure to include the first line that makes the file an executable file in Linux.

File Name: PyramidBlocks.py

Python skills needed:

1. Simple for loop (for var in range(num1,num2):
2. Use of the range object
3. Use of python math
4. Creation of a Python Function
5. Use of the print() method.

Code Assignment 1:

Alex sells pyramid wall art. In the design of his pyramids have each row has one more block than the last which means row 10 has 10 blocks, row 9 will have nine blocks .... Different customers want different size pyramids so Alex wants a simple function that when he enters the number of rows, it will return the number of blocks he needs for the pyramid.

Create the function PyramidBlocks(rows) that adds up all the numbers from 1 to rows. For example: if the input is 4 then your program should return 10 because 1 + 2 + 3 + 4 = 10. For the test cases, the parameter rows will be any number from 1 to 1000.

Sample Test Cases

Input:12
Output:78

Input:140
Output:9870

start with:
def PyramidBlocks(rows):
    # python function code here

# ask for a number
needed = input("How many rows of blocks?\n")
# function call to test
print("Bocks Needed ", PyramidBlocks(needed))

Code Assignment 2:

Python skills needed:

1. For loop (for var in range(num1,num2):
2. Use of the range object
3. Use of python math
4. Creation of a Python Function
5. Use of the print() method(s).
6. Analytical skills

Ariana is looking to purchase an auto. She is thinking of getting a truck but is concerned about the gas mileage so you've offered to help her out.

Create the function MpgCostDiff in python that takes the MPG value, a float value, and the price of gas, a float value.

The function will display the cost of driving the 10,000 miles based on the MPG and price of gas.

It will also display the $ amount saved for each additional mpg increase for the next 20 values and display them in a column format like the following example:

This chart is based on the price of gas being $2.459 per gallon. You will need the following formula for calculating the cost to go 10,000 miles: 10000/mpg*price to calculate the cost savings, it will be the base cost minus the cost of the higher mpg.  

Base MPG 15 Cost per 10,000 miles $1,639.33

MPG 1 MPG 2 Savings
15 16 102.46
15 17 192.86
...... 18 more ...

def MpgCostDiff(mpg, gasPrice):
# python function code here

print(....)

# ask for a mpg
mpgIn = input("How many Miles per Gallon?\n")
# ask for a gas price
priceIn = input("What's the price of gas?\n")
# function call to test
MpgCostDiff(mpgIn, priceIn)

For Example: If I get a car that gets 10 mpg and gas is 2.50 per gallon, it will cost 10000/10*2.5 or $2,500.00 to drive 10,000 mi.es. If i get 11 mpg, it will cost: 10000/11*2.50 = $2,272.72. The cost savings is $2,500 - 2,272.72 or $227.27.

Answer 1

Code Assignment 1

while True:

try:

noRows = int(input('Number of Rows: '))

if noRows < 1 or noRows > 1000:

raise ValueError #this will send it to the print message and back to the input option

else :

count=0

i=0

while i<=noRows:

count=count+i

i+=1

print(count)

except ValueError:

print("Invalid integer. The number must be in the range of 1-10.")