Question

Directions:
Study the following information carefully and answer the questions based on it. Seven friends A, B, C, D, E, F and G are sitting in a straight row, all facing north. The positions are numbered 1 to 7 from the left end to the right end. (i) C sits at the extreme right end of the row. (ii) There are exactly three persons sitting between C and A. (iii) B sits immediately to the left of A. (iv) D sits at the extreme left end of the row. (v) E is not sitting adjacent to A. (vi) F sits immediately to the right of E.

Who sits at the extreme left end of the row?

• A. A
• B. D
• C. G
• D. E

Hint:

Turn the 'exactly three between C and A' clue into a position equation first, then fill the row left to right using the remaining clues one at a time.

Answer 1

The Correct Option is B

Step 1: Anchor the two fixed ends first. Clue (i) fixes C at position 7, and clue (iv) fixes D at position 1. We will verify D's spot by rebuilding the full row from a position-equation instead of reading clue (iv) alone.
Step 2: Turn clue (ii) into an equation. If A is at position $p$, the count of persons strictly between A and C(7) is $7-p-1$. Setting this equal to 3 gives $7-p-1=3$, so $p=3$. Hence A sits at position 3.
Step 3: Clue (iii) gives B immediately left of A, so B is at position $3-1=2$.
Step 4: Positions 4, 5 and 6 remain for E, F and G. Clue (vi) needs F directly right of E, so the pair (E, F) can only be (4, 5) or (5, 6).
Step 5: Clue (v) rules out E being adjacent to A (position 3), i.e. E cannot be 2 or 4. This eliminates the (4, 5) option, leaving E = 5, F = 6, and G takes the leftover position 4.
Step 6: The complete row is D(1), B(2), A(3), G(4), E(5), F(6), C(7). Checking every option against this row: A sits at 3, G at 4, E at 5 - none of them is at the extreme left. Only D occupies position 1.
Correct option: D