4 friends R, S, B, D are playing a board game. R and D are partners and are sitting opposite to each other. S is sitting to the left of D. If R is facing North, which direction is S facing?

As R is facing north and D is opposite to R as given R can sit at the extreme left facing towards North(given direction)

S is sitting to the left of D So , S will be sitting at the extreme right top hand side. So, the direction which S faces is south.

D -----------S
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R------------B

i hope this pictorial representation as well helps you out with the above explanation.

s faces west