Mmcs7idn
Answered

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To do a job alone, it would take Pinpin 3 hours, Ping 4 hours, and Aping 6 hours
How long would it take them to finish the job if they work together?​

Sagot :

Jinjinjjaraidn

Answer:

It would take them 1.33 Hours to finish the job together.

Step-by-step explanation:

[tex]\\ \tt{} \frac{x}{3} + \frac{x}{4} + \frac{x}{6} = 1[/tex]

LCD is 12. Multiply all the terms by the LCD.

[tex]\\ \tt{}12 \bigg( \frac{x}{3} + \frac{x}{4} + \frac{x}{6} = 1 \bigg)[/tex]

[tex]\\ \tt{} \frac{12x}{3} + \frac{12x}{4} + \frac{12x}{6} = 12[/tex]

[tex]\\ \tt{}4x + 3x + 2x = 12[/tex]

[tex]\\ \tt{} 9x = 12[/tex]

[tex]\\ \tt{}x = \frac{12}{9} [/tex]

[tex]\\ \boxed{\huge \boxed{ \tt{}x = 1.33 }} \\ \\ \\ \\ [/tex]

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