Selected MCQ

Current Question
In an exam, 38% fail English, 61% pass Urdu, and 23% fail both. Find the overall failure percent.
  • A. 46%
  • B. 61%
  • C. 54%
  • D. 70%
Correct Answer: C
Explanation:
Combined failure using the union formula = 54%.
Related Question 1
In an exam, 40% fail Urdu, and 45% fail English. If 25% fail both, find the total fail percent.
  • A. 15%
  • B. 65%
  • C. 60%
  • D. 70%
Correct Answer: C
Explanation:
Total fail = 40 + 45 − 25 = 60%.
Related Question 2
Out of 100 students, 50 failed English, and 30 failed Math. If 12 failed both, how many failed at least one?
  • A. 26
  • B. 28
  • C. 32
  • D. 68
Correct Answer: D
Explanation:
Total = 50 + 30 − 12 = 68.
Related Question 3
In two years, 100 and 75 students appeared. Pass percentages were 75% and 60%. Overall pass % is ____.
  • A. 68 4/7 %
  • B. 78%
  • C. 80%
  • D. 80 4/7%
Correct Answer: A
Explanation:
The weighted average is 68 4/7%.
Related Question 4
In a class of 140 students, 60% passed. What percent failed?
  • A. 80%
  • B. 20%
  • C. 40%
  • D. 50%
Correct Answer: C
Explanation:
Failed = 100 − 60 = 40%.
Related Question 5
A student must secure 36% to pass. If he scores 130 and fails, what are total marks?
  • A. 300
  • B. 400
  • C. 350
  • D. 500
Correct Answer: B
Explanation:
130 < 36% ⇒ total ≈ 400.