Question

X does 25% of work in 20 days.Y joins with X and they together the remaining work in 15 days.Y alone can do the whole work in how many days​

Answer 1

Answer:

if x does 25% work in 20 days so 100% work is done in 80 days

let y do work in y days

$\frac{1}{y} + \frac{1}{80} = \frac{1}{15} \\ \frac{1}{y} = \frac{1}{15} - \frac{1}{80 }$

1/y = 65/2000

Step-by-step explanation:

y do whole work in 30.77 days

Answer 2

Answer:

X does 25% of work in 20 days.Y joins with X and they together the remaining work in 15 days.Y alone can do the whole work in how many days