What is the position of Kavya from the right end in a row of 40 students I Dev is 16th from the left...........

Logical Reasoning(Master ) Data Sufficiency

What is the position of Kavya from the right end in a row of 40 students?

I. Dev is 16th from the left end of row and is sitting exactly between Kavya and Sana.

II. Keerat who is sitting 10th from the right end is sitting exactly mid-way between Kavya and Shalu, who is fourth from the right end.

If the data in statement I alone is sufficient to answer the question.

If the data in statement II alone is sufficient to answer the question.

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

If the data given in both I and II together are not sufficient to answer the question.

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

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Explanation:

From statement I, we don’t know that Kavya is left or right of Dev (whose position is known). Also we do not know that Dev is how many places away from both Kavya and Sana.
From statement II, we know that Kavya is left of Keerat, because Shalu is at Keerat’s right. Also when Keerat is 10th from right and Shalu is 4th from right so there are 5 students between Keerat and Shalu. Now since Keerat is mid-way between both, so Kavya is 5 places to the left of Keerat and so we can find Kavya’s position.

Hence, option 2 is the correct answer.