6 workers can build a wall in 30 days. If after 6 days 3 more workers join, find the number of days to build the same wall?

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xero099
1 year ago

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The **wall** can be built in 22 days by 6 **workers** in first 6 days and 9 **workers** in the rest of time.

### How to use inverse proportionality to determine building time of a wall

In this question we must use the definition of *inverse* **proportionality**, in which the **number of workers** (), no unit, is inversely proportional to the *building* **time** (), in days.

According to the statement, 6 workers spent 6 days building a wall and there are 24 days left for completion, but 3 more workers entered to reduce building time, which can be represented by the following expression:

In this scenario, the **wall** can be built in 22 days.

To learn more on **inverse proportionality**, we kindly invite to check this **verified question**: https://brainacademy.pro/question/4838941

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