The positions of Q and W are interchanged, and so are the positions of R and S. How many people are now sitting between S and Q?
Explanation:
Consider the solution to the first question.
The new arrangement will be
_U_ _W_ _V_ _S_ _T_ _P_ _Q_ _R_ _X_ ↑
2 people (T and P) are sitting between S and Q.
Hence, option (c).
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