How many workers are required for completing the construction work, in 10 days?

I. 20% of the work can be completed by 8 workers in 8 days.

II. 20 workers can complete the work in 16 days.

1:

If the data in statement I alone are sufficient to answer the question while the data
in statement II are not sufficient to answer the question.

2:

If the data in statement II alone are sufficient to answer the question while the data
in statement 1 are not sufficient to answer the question.

3:

If the data either in statement I alone or statement II alone are sufficient to answer
the question.

4:

If the data either in statement I alone or statement II alone are sufficient to answer
the question. the data in both statements I and II together are not sufficient to answer the
question.

5:

If the data in both statements I and II are necessary to answer the question.

This has been asked in Question Paper

SBI Clerk mains 2016

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II. There are 24 men on the plane.

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