Question

the park has two sprinklers that are used to fill a fountain. one sprinkler can fill a fountain in 3 hours whereas the second sprinkler can fill a fountain in 6 hours. How long will it take to fill the fountain if both sprinklers on? how do I solve please help!

Answer 1

\(\Large\rm\color{black} x~~hrs~~required~~to~~fill~~with~~both~~sprinklers \)

\(\Large\rm \color{black}{\dfrac{x}{3} +\dfrac{x}{6}=1}\)

Answer 2

so 2 hours?