Question

​A takes 5 days to finish 1 "work" and "B" takes 10 days to finish 1 "work" . How many days taken by both to complete the work?​

Answer 1

Answer:

Hello bro

Step-by-step explanation:

what are help you

Answer 2

Answer:

Let B alone finish the work =xdays.

And Alone finish the work =(x−10)days

A' s one day work =x−101

B's one day work =x1

As it given tha

(A+B)  can finish work in 12 days

∴(A+B)onedaywork=121

⇒A′sonedaywork+B′sonedaywork=121

⇒x−101+x1=121

⇒x(x−10)x+x−10=121

⇒x(x−10)2x−10=121

⇒12(2x−10)=x(x−10)

⇒24x−120=x2−10x

⇒x