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Two mixed groups with their times (two equations): days for another group

This type of question, asked 5 times: 17 Jul 2023 S3, 17 Jul 2023 S4, 24 Jul 2023 S4, 25 Jul 2023 S1, 20 Sep 2025 S1. All 5 questions below, oldest first.

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  1. Question 1

    17 Jul 2023 S3

    62
    12 men and 16 boys can do a piece of work in 5 days, while 13 men and 24 boys can do it in 4 days. In how many days can 29 men and 22 boys complete the work?

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  2. Question 2

    17 Jul 2023 S4

    53
    15 men and 21 women, working together, can do a job in 56 days, while 12 men and 24 women, working together, can do the same job in 64 days. In how many days can the same job be done by 18 men and 24 women, working together?

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  3. Question 3

    24 Jul 2023 S4

    57
    4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

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  4. Question 4

    25 Jul 2023 S1

    57
    4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 25 women complete it?

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  5. Question 5

    20 Sep 2025 S1

    63
    6 women and 4 men can complete a work in 10 days, while 4 women and 5 men complete it in 10 days. In how many days will 8 women complete it?

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