Question

2. A can do a piece of work in x days and B can do the same work in (x+16) days. If both working
together can do it in 15 days; calculatex​

Answer 1

Answer:

dued your questions is very worng? @

Answer 2

Step-by-step explanation:

Use formula,

when, A can do a piece of work in x days and B can do same piece of work in y days .

then they can do work together in xy/(x+y) days .

Dark blue now,

A can do a piece of work in x days and B can do a piece of work in (x +16)days

so, they can do together = x(x+16)/(2x+16)

15 = (x^2 + 16x)/(2x +16)

30x + 240 = x^2 + 16x

x^2 -14x -240 =0

x^2 -24x +10x -240 =0

x(x -24) +10(x -24) =0

x = 24, -10

x≠ -10

Red so, x = 24