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SNAP Time and Work — practice questions — page 2

Explore 93 free Time and Work questions in SNAP Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

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Time and Work questions and exercises with answers

Showing questions 31–60 of 93.

Order the reasoning: why more hands finish soonerRead the answer and worked solution →Assertion and reason: sharing the workRead the answer and worked solution →Complete the two-way ruleRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Tap every quantity that stays fixed in a time and work problemRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Flip and pair: what is held fixed, and what followsRead the answer and worked solution →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 →In uniform motion problems, distance is found by multiplying rate by:Read the answer and worked solution →A car goes 70 miles per hour for 3 hours. The distance covered is:Read the answer and worked solution →For the distance formula, 90 minutes must be written as:Read the answer and worked solution →An express train takes 4 hours and a local train 5 hours for the same trip, the express being 12 mph faster. The local train's speed is:Read the answer and worked solution →With the local train at 48 mph and the express 12 mph faster, the express train runs at:Read the answer and worked solution →Because both trains leave Pittsburgh for Washington, the equation comes from the fact that they travel the:Read the answer and worked solution →If the parents drove at 40 mph and Christopher was 10 mph faster, his speed was:Read the answer and worked solution →When two people drive toward each other, the equation is that their distances:Read the answer and worked solution →For trucks travelling in opposite directions, the distances travelled must:Read the answer and worked solution →If the rate is in miles per hour, the time in the distance formula must be in:Read the answer and worked solution →Katie Mae walks to school in 30 minutes and bikes it in 15 minutes. In hours these times are:Read the answer and worked solution →If Katie Mae walks at 3 mph and bikes 3 mph faster, her biking speed is:Read the answer and worked solution →Hamilton left home at 2:00 pm and entered the desert at 4:30 pm, so he drove in the city for:Read the answer and worked solution →The first step in a distance, rate and time problem, after reading it, is to:Read the answer and worked solution →

Worked practice questions

Order the reasoning: why more hands finish sooner

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Steps
  1. The job is a fixed amount of work
  2. Each worker contributes at the same rate
  3. More workers contribute more per day
  4. So the fixed work is used up in fewer days
  5. Workers and days therefore vary inversely
The argument behind every time and work question. Source: syllabus Maths, Ch 11 Direct and Inverse Proportions.

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Assertion and reason: sharing the work

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Questions
  1. Reason
    It measures the job itself, which does not change.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Worker-days stays the same however the workforce is arranged.
  2. Reason
    Workers and days multiply to a constant for a fixed job.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Halving the workforce doubles the days needed.
  3. Reason
    Work and days vary directly when the workforce is held fixed.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Doubling the job doubles the days, with the workforce unchanged.
The reason must genuinely explain the assertion. Source: syllabus Maths, Ch 11 Direct and Inverse Proportions.

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Complete the two-way rule

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Missing parts
  1. Answer
    inversely
    Choices
    1. inversely
    2. directly
    3. randomly
  2. Answer
    directly
    Choices
    1. directly
    2. inversely
    3. randomly
Complete the statement
With the job fixed, workers and days vary {0}. With the workforce fixed, the size of the job and the days vary {1}.
Hold the workforce fixed and the relationship flips to direct. Source: syllabus Maths, Ch 11 Direct and Inverse Proportions.

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More Quantitative Aptitude topics

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