Aptitude

Topic: Time and Work

A can finish a work in 18 days and B can do the same in half the time taken by A. Then, working together , what part of the same work they can finish in a day? 	 A.  1/6	 B.  1/9 	C.  2/5	 D.  2/7

A's 1 day's work= 1/18and B's 1 day's work= 1/9(A+B)'s 1 day's work= (1/18+1/9)= 1/6

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