Quantitative Aptitude

Time, Work, and Projects

198 Questions

Time and work questions test the ability to calculate the time required to complete tasks involving individual or combined worker efficiency. These problems frequently appear in competitive exams to assess logical calculation skills. Topics include pipes, cisterns, group efficiency, and hourly work rates.

Combined work efficiencyMen and days calculationsWorker efficiency ratiosWorking hours per dayLeaving and joining workers

Time, Work, and Projects Questions

Multiple choice

How do robots reduce project completion times in construction?

  1. By working faster than human workers

  2. By working 24 hours a day, 7 days a week

  3. By eliminating the need for rework

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Robots reduce project completion times in construction by working faster than human workers, working 24 hours a day, 7 days a week, and eliminating the need for rework.

Multiple choice

In Proof of Work, the difficulty of the mathematical puzzle is adjusted to maintain a:

  1. Constant block time

  2. Variable block time

  3. Fixed number of blocks per day

  4. Maximum block size
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Proof of Work, the difficulty of the mathematical puzzle is adjusted to ensure that blocks are produced at a relatively constant rate, regardless of the computational power of the network.

Multiple choice

The 'two-minute rule' suggests that tasks that can be completed in:

  1. 5 minutes or less

  2. 10 minutes or less

  3. 2 minutes or less

  4. 1 minute or less
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 'two-minute rule' suggests that tasks that can be completed in 2 minutes or less should be done immediately.