CA Foundation · Quantitative Aptitude · Seating Arrangements
Six persons P, Q, R, S, T and U sit in a row facing north. S sits at one of the extreme ends. R sits second to the right of S. Q sits between S and R. T is an immediate neighbour of R but not of S. U does not sit at either end. How many persons sit between Q and U?
Two persons sit between Q and U. The row from left to right is S, Q, R, T, U, P. S must be at the left end for R to be second to its right, Q fills the gap between them, T goes next to R, and U avoids the end.
- A1
- B2Correct
- C3
- D4
Explanation
R is second to the right of S, so S is at the left end (position 1) and R is at position 3. Q is at position 2. T neighbours R but not S, so T is at position 4. U is not at an end, so U is at position 5 and P at position 6. Row: S Q R T U P. Between Q and U are R and T, which is 2 persons.
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