3 years ago

10) 9 people can paint a bridge in 5 hours,

Mathematics

1 answer:

ale4655 [162]3 years ago

8 0

Step-by-step explanation:

The number of people to paint the bridge is inversely proportional to the number of hours it takes.

(If there are more people, it will take less time etc.)

9 people can paint the bridge in 5 hours.

=> 2 people can paint the bridge in 5 * (9/2) = 22.5 hours.

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