Question
Akash and Bhavna together can
complete a work in 12 days. How many days will it take for Akash to do the same work alone? Statements I: The efficiency ratio of Akash and Bhavna is 2:3. Statements II: Akash and Bhavna together complete 60% of the work in 7.2 days. The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.Solution
ATQ, Statement I: Let, efficiency of 'Akash' and 'Bhavna' is '2p' units/day and '3p' units/day, respectively. Total Work = 12 × 5p = 60p units Time taken by 'Akash' alone = 60p/2p = 30 days So, data in statement I alone is sufficient to answer the question. Statement II: 'Akash' and 'Bhavna' together do 60% of work in 7.2 days. So, data in statement II alone is not sufficient to answer the question.
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