Selected MCQ

Current Question
A student scores 60 in Maths and Physics. Chemistry is 20 marks more than Maths. Find the average marks.
  • A. 40
  • B. 30
  • C. 25
  • D. Data inadequate
Correct Answer: A
Explanation:
Total = 60 + 60 + 80 = 200 → avg = 40.
Related Question 1
In an exam of 500 marks, A scores 10% less than B, B scores 25% more than C, and C scores 20% less than full marks. Find A’s mark percentage.
  • A. 70%
  • B. 90%
  • C. 80%
  • D. 75%
Correct Answer: C
Explanation:
Stepwise percentage adjustment gives 80%.
Related Question 2
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.
Related Question 3
A student scores 20% marks and fails by 30 marks. Passing marks are ____.
  • A. 20%
  • B. 25%
  • C. 28%
  • D. 30%
Correct Answer: B
Explanation:
Difference corresponds to 5% → passing = 25%.
Related Question 4
The tens digit of a two-digit number is 2 more than the units digit. The number is 7 times the sum of its digits. Find the units digit.
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Correct Answer: B
Explanation:
Let the unit digit = x, solve Equation.
Related Question 5
In an exam, 65.8% take physics and 59.2% mathematics. Total students are ____.
  • A. 750
  • B. 500
  • C. 250
  • D. 125
Correct Answer: B
Explanation:
Using inclusion-exclusion gives 500.