Selected MCQ

Current Question
An officer works maximum days. What is the number of days?
  • A. 3
  • B. 4
  • C. 5
  • D. 6
Correct Answer: A
Explanation:
Constraint-based calculation.
Related Question 1
8 men can dig a pit in 20 days. If a man works 1.5 times as much as a boy, the number of days required by 4 men and 4 boys ____.
  • A. 12 days
  • B. 16 days
  • C. 18 days
  • D. 20 days
Correct Answer: B
Explanation:
Convert men into boy equivalents.
Related Question 2
12 children take 16 days to finish work. Time for the same work with a different number is ____.
  • A. 3 days
  • B. 4 days
  • C. 6 days
  • D. 8 days
Correct Answer: C
Explanation:
Work is inversely proportional.
Related Question 3
A man can complete a work in 12 days. He works for 4 days. Remaining work is ____.
  • A. 1/2
  • B. 1/3
  • C. 2/3
  • D. 3/4
Correct Answer: C
Explanation:
Work done = 4/12 = 1/3 → remaining = 2/3.
Related Question 4
In a hospital, injections last 15 days. If the number of patients increases, for how many days will they last?
  • A. 10
  • B. 15
  • C. 16
  • D. 12
Correct Answer: A
Explanation:
Increased consumption reduces duration.
Related Question 5
Pipes A, B, C fill tank in 12, 15, 20 houRs. If A alone works, time required is ____.
  • A. 6 hrs
  • B. 6⅔ hrs
  • C. 7 hrs
  • D. 7½ hrs
Correct Answer: C
Explanation:
Based on the given combination.