Directions : Read the following information carefully and answer the questions…
2019
Directions : Read the following information carefully and answer the questions given below it. Eight persons R@, R#, R$, R&, R%, R*, R© and RΩ are sitting around a hollow circular table such that R&, R$, R# and RΩ sit on the inner side of the table and the rest are sitting on the outer side of the circular table and they all are facing away from the center. The persons sitting on the inner side of the circular table are sitting just behind the persons sitting on the outer side of the circular table and all are graduated from different universities i.e. HTS, UGI, LPU, HNB, KPJ, UPI, NIT and FPT. All the information is not necessarily in the same order. The one who is graduated from KPJ sits just behind the one who sits second to the left of the one who is graduated from UPI. RΩ sits just behind the R*. R% who is graduated from UGI sits opposite to the one who sits at the immediate left of R©. R& is not graduated from FPT. The one who is graduated from HTS sits at the immediate left of the one who is graduated from LPU. The one who is graduated from KPJ sits just behind the R©. RΩ sits at the immediate right of R&. The persons who are graduated from FPT and HNB are sitting on the same table and sit opposite to each other. R& sits just behind the one who is graduated from UGI. R$ is not graduated from FPT.
How many persons are sitting between R* and R% when counted from right of R*?
- A.
One
- B.
Two
- C.
None
- D.
None of these
- E.
Can’t be determined
Show answer & explanation
Correct answer: B
Concept
In a circular seating puzzle, fix the rigid links first (who sits just behind whom, who is opposite whom), then place the remaining people and attributes onto that frame. Since everyone faces away from the centre, each person's right hand points clockwise as seen from above and the left hand points anticlockwise. "Counted from the right of X" means travel the way X's right hand points and count only the people strictly in between, never the two endpoints.
Application — building the frame from the clues
Inner persons are R&, R$, R#, RΩ; outer persons are R@, R%, R*, R©. Each inner person sits just behind one outer person on the same spoke.
"RΩ sits just behind R*" puts RΩ and R* on the same spoke. "RΩ sits at the immediate right of R&" means, reading clockwise, R& is immediately followed by RΩ on the inner ring.
"R& sits just behind the one from UGI" with "R% is from UGI" places R% directly in front of R&; and "R% sits opposite the person at the immediate left of R©" is satisfied because the immediate-left (anticlockwise) neighbour of R© is R@, whose opposite seat is R%.
Resolving these together fixes the outer ring order and the inner ring order uniquely up to rotation, as shown in the table below.
Solved arrangement
Reading each ring in clockwise order (the direction of every person's right hand):
Ring | Clockwise order (right-hand direction) |
|---|---|
Outer | R%, R*, R@, R© |
Inner | R&, RΩ, R#, R$ |
Result
On the outer ring, R% sits immediately to the LEFT of R*, so R% is not the first person reached on R*'s right. Going from R*'s right (clockwise) the persons reached before R% are R@ and R©. Two persons sit between R* and R% counted from the right of R*, so the answer is Two.
Cross-check
The outer ring holds only four people, so apart from the endpoints R* and R% just R@ and R© remain, and both lie on the right-hand path — confirming the count. Counting the other way (from R*'s left) R% is the adjacent neighbour, which is why the stated direction matters. The frame is fixed up to rotation, so every valid seating gives the same count.