#16 - Local, Must Be True

[Dave Killoran]

Complete Question Explanation
(The complete setup for this game can be found here: lsat/viewtopic.php?t=980)

The correct answer choice is (D)

If M sits in row 1, it initially appears that M can sit in the aisle or window seat. But, if M occupies the aisle seat in row 1, a violation of the fourth rule results, as explained below.

When M sits in the row 1 aisle seat, G and H then sit in rows 2 and 3:

G3-Q16-d1.png

From the second rule, L must then sit in row 3:

G3-Q16-d2.png

However, this forces K (and I) into a window seat, enacting the third rule which cannot then be satisfied. Thus, M cannot sit in the aisle seat and M must sit in the window seat in row 1:

G3-Q16-d3.png

When M sits in row 1, from the contrapositive of the fourth rule K cannot occupy a window seat, and must then occupy an aisle seat. Thus, the three aisle seats are occupied by K, G, and H, and the three window seats are occupied by M, I, and L.

In the aisle seats, K appears to have the choice of row 1 or 3. But, because of the fifth rule, in this question if K sits in row 3, then I would have to occupy the row 1 window seat, which is impossible because M sits in that seat. Thus, K cannot sit in row 3, and must instead sit in row 1, leading to the following diagram:

G3-Q16-d4.png

Accordingly, answer choice (D) is correct.