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RRB Group D Time and Work — practice questions — page 2

Explore 32 free Time and Work questions in RRB Group D 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 31–32 of 32.

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 →

Worked practice questions

Two are true, one is not

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Questions
  1. False statement
    Adding workers raises the worker-days
    Statements
    1. Worker-days measures the job
    2. Adding workers leaves worker-days unchanged
    3. Adding workers raises the worker-days
  2. False statement
    Halving the workforce halves the days
    Statements
    1. Halving the workforce halves the days
    2. Halving the workforce doubles the days
    3. Trebling the workforce cuts days to a third
  3. False statement
    Both cases are direct relations
    Statements
    1. A fixed job means an inverse relation
    2. Both cases are direct relations
    3. A fixed workforce means a direct relation
The false line makes the job change when it should not. Source: syllabus Maths, Ch 11 Direct and Inverse Proportions.

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Flip and pair: what is held fixed, and what follows

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Matching pairs
  1. A
    Job fixed
    B
    workers and days vary inversely
  2. A
    Workforce fixed
    B
    job size and days vary directly
  3. A
    Workers × days
    B
    the total work
  4. A
    More hands
    B
    fewer days
Two rows cover every version of the question. Source: syllabus Maths, Ch 11 Direct and Inverse Proportions.

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Simple InterestNumber SystemRatio and ProportionProfit and LossSquare RootsProfit LossBasic ArithmeticMultiplication