Selected MCQ

Current Question
In a survey, 80% own cars and 60% own bikes. What percent own both?
  • A. 40%
  • B. 80%
  • C. 85%
  • D. 97.5%
Correct Answer: A
Explanation:
Minimum overlap = 80 + 60 − 100 = 40%.
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
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 3
A person buys a TV for Rs. 16000 and a DVD for Rs. 6250. He sells both for Rs. 31150. What is profit percent?
  • A. 30%
  • B. 35%
  • C. 40%
  • D. 45%
Correct Answer: C
Explanation:
Profit = 31150 − 22250 = 8900 → 40%.
Related Question 4
In a school, 40% play football and 50% play cricket. If 18% play neither, what percentage play both?
  • A. 40%
  • B. 32%
  • C. 22%
  • D. 8%
Correct Answer: D
Explanation:
Total playing at least one = 82%, so both = 40 + 50 − 82 = 8%.
Related Question 5
Salary of X is 30% more than Y. Y is what percent less than x = ____.
  • A. 30%
  • B. 25 1/13 %
  • C. 23 1/13 %
  • D. 22 1/13 %
Correct Answer: C
Explanation:
Percentage difference formula.