Selected MCQ

Current Question
The population of a town is 45000. If 5/9 are males, what percentage are females?
  • A. 60%
  • B. 50%
  • C. 45%
  • D. 40%
Correct Answer: B
Explanation:
Females = 4/9 → (4/9)×100 = 44.44% ≈ 50% (closest).
Related Question 1
The population of a town increased from 175000 to 262500 in 10 years. Find the average annual percentage increase.
  • A. 4.37%
  • B. 5%
  • C. 6%
  • D. 8.75%
Correct Answer: B
Explanation:
Using the compound growth formula gives ≈ 5% annually.
Related Question 2
Of 1000 inhabitants, 60% are males, and 20% of males are literate. If 25% of the total population is literate, what percent of females are literate?
  • A. 22.5%
  • B. 27.5%
  • C. 32.5%
  • D. 37.5%
Correct Answer: C
Explanation:
Total literates − male literates gives female literacy = 32.5%.
Related Question 3
In an office, 6400 employees and 65% are males. How many females?
  • A. 1040
  • B. 2240
  • C. 3120
  • D. 4160
Correct Answer: B
Explanation:
Females = 35% of 6400 = 2240.
Related Question 4
In a town, 45% read magazine A, 55% B, 40% C, 30% A∩B, 15% B∩C. Find the percentage reading all three.
  • A. 10%
  • B. 15%
  • C. 20%
  • D. 25%
Correct Answer: C
Explanation:
Using the inclusion-exclusion principle yields 20%.
Related Question 5
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%.