Start learning →

AFCAT Time and Work — practice questions

Explore 9 free Time and Work questions in AFCAT Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

Practise Time and Work with Quill →

Time and Work questions and exercises with answers

Showing questions 1–9 of 9.

As the number of workers on a job increases, the time taken to finish it:Read the answer and worked solution →If 6 men finish a job in 10 days, how many days will 4 men take at the same rate?Read the answer and worked solution →If 12 workers can complete a task in 8 days, 16 workers will complete it in:Read the answer and worked solution →A can do a piece of work in 10 days and B in 15 days. Working together they finish it in:Read the answer and worked solution →A and B together finish a job in 12 days. A alone takes 20 days. B alone would take:Read the answer and worked solution →A is twice as fast as B. Working together they finish a job in 8 days. A alone would take:Read the answer and worked solution →A pipe fills a tank in 6 hours while an outlet empties it in 8 hours. With both open the tank fills in:Read the answer and worked solution →A can finish a job in 20 days. After working 5 days he leaves. The fraction of work left is:Read the answer and worked solution →For a fixed amount of work, the product of the number of workers and the days taken is:Read the answer and worked solution →

Worked practice questions

As the number of workers on a job increases, the time taken to finish it:

  1. Increases in the same ratio
  2. Stays the same
  3. First rises, then falls
  4. Decreases
Show answer and solution

Correct answer: D. Decreases

1. Two quantities are in inverse proportion when one rises as the other falls. 2. As the number of workers increases, the time taken to finish the job decreases. 3. Doubling the workers halves the time, so the product of workers and days stays constant. 4. That constant product is the total work to be done. 5. Option A describes direct proportion, which is the opposite relationship. _Source: syllabus Maths, Ch 11 'Direct and Inverse Proportions', S11.3 Inverse Proportion_

Open this question →

If 6 men finish a job in 10 days, how many days will 4 men take at the same rate?

  1. 15 days
  2. 12 days
  3. 16 days
  4. 20 days
Show answer and solution

Correct answer: A. 15 days

1. Men and days are in inverse proportion, so their product is the total work. 2. The work here is 6 x 10 = 60 man-days. 3. With 4 men, the days needed are 60 / 4. 4. That is 15 days. 5. Fewer men must mean more days, so any answer below 10 would be wrong on inspection. _Source: syllabus Maths, Ch 11 'Direct and Inverse Proportions', S11.3 Inverse Proportion_

Open this question →

If 12 workers can complete a task in 8 days, 16 workers will complete it in:

  1. 4 days
  2. 6 days
  3. 9 days
  4. 10 days
Show answer and solution

Correct answer: B. 6 days

1. The total work is 12 x 8 = 96 worker-days. 2. This total does not change when the team size changes. 3. With 16 workers the time needed is 96 / 16. 4. That is 6 days. 5. More workers means fewer days, so the answer must fall below 8, which rules out 9 and 10. _Source: syllabus Maths, Ch 11 'Direct and Inverse Proportions', S11.3 Inverse Proportion_

Open this question →

How to practise

  1. Choose a Time and Work question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Time and Work practice for AFCAT. Read explanations as you go. No signup form needed to start.

Practise Time and Work →

More Quantitative Aptitude topics

AveragesInterestProfit and LossRatio and ProportionSimple & Compound InterestSimple InterestAnalogiesBlood Relations