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The work done by (x – 3) men in (2x + 1) days and the work done by (2x + 1) men in (x + 4) days are in the ratio of 3: 10.

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The work done by (x – 3) men in (2x + 1) days and the work done by (2x + 1) men in (x + 4) days are in the ratio of 3: 10. Find the value of x.

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(x - 3) men do a work in (2x + 1) day

∴ 1 man does it in (2x + 1) (x - 3) days

(2x + 1) men do a work in (x + 4) days

∴ 1 man does it in (x + 4) (2x + 1) days

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