Assessment: Conditionals

Section 5.3 Assessment: Conditionals

Subgoals for writing conditionals:.

Define how many mutually exclusive paths are needed
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Order paths from most restrictive to least restrictive
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Write conditional statement with Boolean expression
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Follow with true path including action in indentation
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Repeat 3 and 4 until all paths are included
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(Optional) Follow with else path including action in indentation
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Exercises Exercises

1.

Q1: What is the output of the following code?

a = 10
b = 20
if 2 * a >= b:
    print("Yes")
else
    print("No")

Yes
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No
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There is no output because a compiler error occurs
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There is no output because an exception occurs
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2.

Q2: Click on all conditions that are true in the following code prior to the code being executed:

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a = 5
b = 20
c = 15
if 2 * a >= b:
    print("Double a")
elif 2 * c >= b:
    print("Double c")
elif 2 * b >= b:
    print(“Double b”)

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3.

Q3: What is the output of the following code?

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if 5 == (10 // 2):
    if 5 % 2 > 0:
        if 0:
            conditions = 0
        else:
            conditions = 5
    else:
        conditions = 10
else:
    conditions = 15
if conditions:
    if conditions % 2 > 0:
        print("Odd")
    else:
        print("Even")
else:
    print("Conditions not met")

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4.

Q4: Enter the value of each variable after the following code is executed:

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a = 0
b = 1
c = 2
if a < c:
    a = c
if 2 * b == c:
    c = 0
elif 2 * b < c:
    b = 0
else:
    a = 0
if c:
    c = 2*(b + a)
elif b:
    b = 2*(a + c)
elif a:
    a = 2*(b + c)

The value of variable a is , the value of variable b is , and the value of variable c is .

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5.

Put the code in the right order to create a program that will ask the user for a number between -20 and 20 (inclusive).Print the number. Then check if the number is positive, negative, or neither. Print the result.

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x = int(input("Please enter an integer between -20 and 20: "))
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print(x)
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if x > 0:
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    result = "Positive"
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elif x < 0:
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    result = "Negative"
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else:
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    result = "Neither"
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print(result)

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6.

Put the code in the right order to create a program that will generate a random number (1 to 100 inclusive), and print the number. Check if the number is a multiple of 2 and print the result. Then check if the number is a multiple of 3 and print the result. Then check if the number is a multiple of 5 and print the result.

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x = int(input("Please enter an integer between 1 and 100: "))
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print(x)
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if x % 2 == 0:
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    print(x, "is a multiple of 2.")
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elif x % 2 != 0:
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    print(x, "is not a multiple of 2.")
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if x % 3 == 0:
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    print(x, "is a multiple of 3.")
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elif x % 3 != 0:
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    print(x, "is not a multiple of 3.")
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if x % 5 == 0:
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    print(x, "is a multiple of 5.")
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elif x % 5 != 0:
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    print(x, "is not a multiple of 5.")

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