Question

When building a house, the number of days required to build varies inversely withwith the number of workers. One house was built in 72 days by 10 workers. Howmany days would it take to build a similar house with 20 workers?

Answer 1

Data:

the number of days required to build varies inversely with the number of workers (number of days/number of workers)

One house was built in 72 days by 10 workers

`\frac{72\text{days}}{10\text{workers}}`

x: number of days required with 20 workers

`\frac{72\text{days}}{10\text{workers}}=\frac{\text{xdays}}{20\text{workers}}`

Use the equation above to solve x: