Discussion
Which of the following statements is/are correct?
1. If 5 workers complete a task in 12 days, then 10 workers can complete the same task in 5 days.
2. If 8 workers complete a task in 14 days, then 4 workers can complete the same task in 30 days.
Select the answer using the codes given below:
Answer: D
Neither 1 nor 2 is correct.
Work is workers times days and stays constant for the same task.
\[ \begin{aligned} 5 \times 12 &= 60 \Rightarrow \tfrac{60}{10} = 6 \text{ days, not } 5 \\ 8 \times 14 &= 112 \Rightarrow \tfrac{112}{4} = 28 \text{ days, not } 30 \end{aligned} \]
Both statements misstate the result of an inverse proportion: doubling the workforce halves the time (12 to 6), and halving it doubles the time (14 to 28).
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development