Question

To complete a job a crew of 8 people needs 18 days. How long will the same job be finished if the crew will have 9 people?

Answer 1

8 people require=18 days

9 people require=? (say 'x' days)

As number of people increases, days require decreases. This is an example of inverse proportion.

Hence,x=8×18/9=16 days

Therefore, they require 16 days.

Answer 2

Answer:

16 days

Step-by-step explanation:

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