Eight people, A, B, M, N, S, T, Y and Z, are sitting in a row, facing north. S sits second to the left of Y and S sits third to the right of N. Y sits at one of the extreme ends. T sits to the immediate right of A. B sits to the immediate left of M and M sits second to the left of Z. Who sits at the extreme left end of the row?
A
Number the seats 1 (extreme left) to 8 (extreme right), all facing north, so "right" means a higher-numbered seat.
"S sits second to the left of Y" and "Y sits at one of the extreme ends." If Y were at seat 1, S would fall off the row, so Y sits at seat 8 and S at seat 6.
"S sits third to the right of N" places N three seats before S, so N sits at seat 3.
Seats 3, 6 and 8 are fixed (N, S, Y); seats 1, 2, 4, 5, 7 remain for A, B, M, T and Z.
"M sits second to the left of Z" means Z = M + 2. Testing M = 5 gives Z = 7, and "B immediately left of M" gives B = 4.
The last two open seats 1 and 2 take A and T with "T immediately right of A", so A = 1 and T = 2.
Seat 1, the extreme left end, is occupied by A. Hence, A sits at the extreme left end.
Similar Questions
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- Study the given information carefully and answer the question that follows.
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Important Questions from Linear Arrangement
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