A can finish a work in 12 days and B can do same work in half the time taken by A. then working together, what part of same work they can finish in a day? Choose the correct choice from the following answers:
A) 1/4 B) 1/6 C) 1/7 D) 1/8 E) None of these
Explanation:   Please note in this question, we need to answer part of work for a day rather than complete work. It was worth mentioning here because many do mistake at this point in hurry to solve the question   So lets solve now,   1/4's 1 day work = 1/12   B's 1 day work = 1/6 [because B take half the time than 1/4]   (1/4+B)'s one day work =   (1/12+1/6)=1/4   So in one day 1/4 work will be done   1/4nswer: 1/4
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A can finish a work in 12 days and B can do same work in half the time taken by A. then working together, what part of same work they can finish in a day?