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Logic Building - Phase 6: Mixed Logical Challenges
Apply all concepts together to solve complex, real-world logical problems
50 questions•5 pages•~75 min
Use this quiz track to strengthen recall, speed, and exam-style decision making. Attempt one page first, review explanations, and then re-attempt incorrect questions without notes.
A good scoring strategy is to mark uncertain questions, finish known ones quickly, and return with elimination logic. This improves accuracy while keeping momentum under time constraints.
Progress: 0 / 500%
Page 3 of 5 • Questions 21-30 of 50
Q21hard
What will be printed? num = 789 s = str(num) count = sum([1 for ch in s if int(ch) % 2 == 0]) print(count)
Q22medium
What is the output?
arr = [5, 10, 15]
s = "test"
result = [x for x in arr if x > len(s)]
print(len(result))Q23hard
What will be printed? num = 12 s = "Python" if num % 3 == 0 and num % 4 == 0 and len(s) > 5: print("All conditions met") else: print("Not all met")
Q24hard
What does this code do? arr = [1, 2, 3, 4, 5] s = "abc" result = [arr[i] if i < len(arr) else s[i-len(arr)] for i in range(6)] print(result)
Q25medium
What is the result?
num = 50
s = "Hello"
result = num if num > len(s) else len(s)
print(result)Q26hard
What will be printed? arr = [2, 4, 6, 8] s = "test" result = [x for x in arr if x % len(s) == 0] print(result)
Q27medium
What is the output?
num = 123
s = str(num)
arr = [int(ch) for ch in s]
result = arr[0] * arr[-1]
print(result)Q28hard
What will be printed? arr = [1, 2, 3] s = "Python" result = sum(arr) + sum([ord(ch) for ch in s[:3]]) print(result)
Q29medium
What does this code do? num = 42 s = "test" if num % 2 == 0 and len(s) == 4: result = num // len(s) print(result) else: print(0)
Q30hard
What is the result?
arr = [10, 20, 30, 40]
s = "Hi"
result = [x for x in arr if x > len(s) * 10]
print(result)