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Q #16
⏰ :

Directions: These questions are based on the data given below.

Eight persons – A, B, C, D, E, F, G and H – are sitting in eight chairs all of which are facing the same direction. The eight chairs are arranged in two rows and four colums.

Also, the following information is known.

  1. A and F sit at either ends but in different rows and different columns.
  2. G and C sit at either ends but in different rows.
  3. E and B sit in different rows and in different columns.
  4. D sits in the same row as F, but to the right of G.
  5. A sits ahead of G.

Of the following statements which statement/groups of statements will be sufficient to obtain a definite seating arrangement?

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Discuss
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From I, we get AEHC GDBF or AHEC GBDF Hence, I alone is not sufficient. From II, we get AEHC GDBF Hence, II alone is sufficient. From III, we get the same two arrangements as from I. Hence, II alone is sufficient. Even using statements I and III we do not get a unique arrangement as we get two arrangements as shown. A H E C G B D F or A E H C G D B F

Q #17
⏰ :

Directions: These questions are based on the data given below.

Eight persons – A, B, C, D, E, F, G and H – are sitting in eight chairs all of which are facing the same direction. The eight chairs are arranged in two rows and four colums.

Also, the following information is known.

  1. A and F sit at either ends but in different rows and different columns.
  2. G and C sit at either ends but in different rows.
  3. E and B sit in different rows and in different columns.
  4. D sits in the same row as F, but to the right of G.
  5. A sits ahead of G.

If E sits adjacent to A, then which of the following statements must be true?

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Discuss
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If E sits adjacent to A, we get the following arrangement: AEHC GDBF Here, only 'B sits exactly between F and D' is correct

Q #18
⏰ :

Directions: These questions are based on the data given below.

Eight persons – A, B, C, D, E, F, G and H – are sitting in eight chairs all of which are facing the same direction. The eight chairs are arranged in two rows and four colums.

Also, the following information is known.

  1. A and F sit at either ends but in different rows and different columns.
  2. G and C sit at either ends but in different rows.
  3. E and B sit in different rows and in different columns.
  4. D sits in the same row as F, but to the right of G.
  5. A sits ahead of G.

If H and E sit in the same column then who sits in the same column as D?
Discuss
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If H and E sit in the same column then, we get the following arrangement: AHBC GEDF or ABHC GDEF In either case, B sits in the same column as D.

Q #19
⏰ :

Directions: These questions are based on the data given below.

Four married couples comprising of four males – P, S, T, V – and four females – Y, R, U, W – are sitting around a circular table at equidistant chairs, such that no two males sit adjacent to each other.

The following information is known about their seating arrangement :

  1. Each husband’s wife wits three places to his right.
  2. P is the only person sitting between Y and U.
  3. R is the only person sitting in between T and V.
  4. S is the only person sitting between W and U.
  5. R is married to S.
  6. Y is married to V.

Who is the husband of W?

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P is the husband of W.

Q #20
⏰ :

Directions: These questions are based on the data given below.

Four married couples comprising of four males – P, S, T, V – and four females – Y, R, U, W – are sitting around a circular table at equidistant chairs, such that no two males sit adjacent to each other.

The following information is known about their seating arrangement :

  1. Each husband’s wife wits three places to his right.
  2. P is the only person sitting between Y and U.
  3. R is the only person sitting in between T and V.
  4. S is the only person sitting between W and U.
  5. R is married to S.
  6. Y is married to V.

Who is sitting opposite to U’s husband?

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U’s husband is T, who is sitting opposite to S, who is the husband of R.