1.

A Can Finish A Piece Work In 18 Days And B Can Do The Same Work In Half The Time Taken By A. So If They Working Together, What Part Of The Same Work Can Finished In A Day?

Answer»

First find the 1 DAY work of both (A & B)

A's 1 day's work = 1/18

and 

B's 1 day's work = 1/9 (B can do work in HALF TIME)

(A + B)'s 1 day's work = (1/18+1/9) 

= (1+2)/18 = 3/18 = 1/6 

so A & B together can do 1/6 of work in 1 day.

First find the 1 day work of both (A & B)

A's 1 day's work = 1/18

and 

B's 1 day's work = 1/9 (B can do work in half time)

(A + B)'s 1 day's work = (1/18+1/9) 

= (1+2)/18 = 3/18 = 1/6 

so A & B together can do 1/6 of work in 1 day.



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