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A, B, C, D, E, F, G and H are sitting in a row facing north. There are exactly two persons sitting between D and E. A is sitting third from the left end. B, A, C and G are sitting in that order from left to right but no two of them are in adjacent positions. D, F and H are sitting from left to right in that order, but not necessarily in adjacent positions. If H and D interchange their positions and then D and E interchange their positions, who sits second to the right of A?

A, B, C, D, E, F, G and H are sitting in a row facing north. There are exactly two persons sitting between D and E. A is sitting third from the left end. B, A, C and G are sitting in that order from left to right but no two of them are in adjacent positions. D, F and H are sitting from left to right in that order, but not necessarily in adjacent positions. If H and D interchange their positions and then D and E interchange their positions, who sits second to the right of A? Correct Answer D

1) A is sitting third from the left end.

[ alt="Sangeeta Single Qs 19 June 2018 5q hindi images Q5" src="//storage.googleapis.com/tb-img/production/18/07/Sangeeta_Single%20Qs_19%20June%202018_5q_hindi_images_Q5.PNG" style="height:29px; width:424px">

2) B, A, C and G are sitting in that order from left to right but no two of them are in adjacent positions.

[ alt="Sangeeta Single Qs 19 June 2018 5q hindi images Q5a" src="//storage.googleapis.com/tb-img/production/18/07/Sangeeta_Single%20Qs_19%20June%202018_5q_hindi_images_Q5a.PNG">

3) There are exactly two persons sitting between D and E → Case 1 is eliminated.

4) D, F and H are sitting from left to right in that order, but not necessarily in adjacent positions → Case 2 is eliminated as there cannot be exactly two persons between D and E.

Hence, only Case 3 remains.

[ alt="Sangeeta Single Qs 19 June 2018 5q hindi images Q5b" src="//storage.googleapis.com/tb-img/production/18/07/Sangeeta_Single%20Qs_19%20June%202018_5q_hindi_images_Q5b.PNG" style="height:26px; width:429px">

5) The arrangement is as follows on applying the conditions mentioned in 3 and 4.

[ alt="Sangeeta Single Qs 19 June 2018 5q hindi images Q5c" src="//storage.googleapis.com/tb-img/production/18/07/Sangeeta_Single%20Qs_19%20June%202018_5q_hindi_images_Q5c.PNG" style="height:27px; width:425px">

If H and D interchange their positions,

[ alt="Sangeeta Single Qs 19 June 2018 5q hindi images Q5d" src="//storage.googleapis.com/tb-img/production/18/07/Sangeeta_Single%20Qs_19%20June%202018_5q_hindi_images_Q5d.PNG">

And now if D and E interchange their positions,

[ alt="Sangeeta Single Qs 19 June 2018 5q hindi images Q5e" src="//storage.googleapis.com/tb-img/production/18/07/Sangeeta_Single%20Qs_19%20June%202018_5q_hindi_images_Q5e.PNG">

Clearly, D sits second to the right of A.

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