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Time and Work - Ration Problems

1 UPSC Prelims MCQs tagged "Time and Work - Ration Problems". Free practice with answer keys, explanations, and timed mock tests on Anantam IAS.

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  1. A charity kitchen has grain to serve 200 people for 40 days. If 50…

    A charity kitchen has grain to serve 200 people for 40 days. If 50 people leave after 10 days, how long from now would the grain last?

    1. A30 days
    2. B40 days
    3. C50 days
    4. D36 days
    Answer and explanation

    Correct answer: B

    Total stock equals 200 x 40 = 8000 person-days. In the first 10 days, 200 people consume 200 x 10 = 2000 person-days, leaving 6000 person-days. With 50 people gone, 150 remain, so the grain lasts 6000 / 150 = 40 more days from that point.

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    CSAT UPSC GPSC-2026 Medium