Working Alone, John Can Weed The Garden In 4 Hours. If Carl Helps, They…

Working alone, John can weed the garden in 4 hours. If Carl helps, they can weed the garden in 3 hours. How long would it take for Carl to weed the garden on his own? with Solution.​

Answer:

12 hours

Step-by-step explanation:

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

[tex] \frac{3}{x} = 1 – \frac{3}{4} [/tex]

[tex] \frac{3}{x} = (1 \times \frac{4}{4}) – \frac{3}{4} [/tex]

[tex] \frac{3}{x} = \frac{4}{4} – \frac{3}{4} [/tex]

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

[tex](3)(4) = (x)(1)[/tex]

[tex]12 = x[/tex]

[tex]x = 12[/tex]