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]
