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Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. 8 men and 6 women can complete a piece of work in 21 days. How many days will take for 12 men and 9 women to complete the same work? I. 12 men can complete the work in 21 days. II. 21 women can complete the work in 21 days. III. The amount of work done by a woman is four-sevenths of the work done by a man in one day.

Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. 8 men and 6 women can complete a piece of work in 21 days. How many days will take for 12 men and 9 women to complete the same work? I. 12 men can complete the work in 21 days. II. 21 women can complete the work in 21 days. III. The amount of work done by a woman is four-sevenths of the work done by a man in one day. Correct Answer No need of any other information

Given that, 

8 men and 6 women can complete a piece of work = 21 days

⇒ 4 men and 3 women can complete the same work = 42 days 

12 men and 9 women can complete the same work = ?

Form the above 12 men and 9 women = 3 × (4 men and 3 women) 

 Hence,12 men and 3 women can complete the work = 42 ÷ 3 ⇒ 14day 

∵ No need for any other information

 

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