A , B ,C ,D ,E ,F ,G and H are sitting around a circular table. Only two of them are not facing the centre but sit opposite each other. G is the second to the right of A and third to the right of C. B is second to the left of C and fourth to the right of D. E is second to the right of H and is facing the centre. One of the persons who is facing outwards is an immediate neighbour of G and A both. D sits second to the right of C and is not an immediate neighbour of A. /Who among the following are not facing the centre?
Select one:
a. GF
b. CF
c. EB
d. CA
Answers
Answered by
11
a)GF
is the only correct answer ..
pls mark me as brainliest..
reason of your answer is
Facing the same direction means if one faces the centre then other also faces the centre and vice versa. Facing opposite direction means if one person faces the centre then the other faces outside and vice versa.
B faces outside. D sits second to the left of B. A and F are immediate neighbours of D. H sits second to the right of A. C sits third to the left of H. E sits to the immediate right of G. D sits third to the left of E. D faces the same direction as H. F sits to the immediate right of C. F and G take same directions. Find the desired arrangement.
Solution: Let us try to solve this question clue by clue:
B faces outside:

After fixing B's position, we can see that D will be in anti-clockwise direction from B and since D is second to the left, this means there will be 1 person in between them. But we don't know the direction of D yet, so D can be facing inside or outside.

A and F are immediate neighbours of D. H sits second to the right of A. This would give rise to 4 possibilities. First, F can be between B & D and A will be on the other side of D. Secondly, A can be between B and D while F will be on the other side of D. Each case is explained below with possible directions of 'A' (inside/ outside).A is sitting at other side of D (not between B and D) and F is between B and D. Now A can face inside or outside. Now in case we take A as facing outside, then 2nd to the right would be H where as we know that this position belongs to F since it is A and F who are neighbours of D, so in this situation we can take A to be facing only inside. We can also add H as 2nd anti clockwise to A and place F between B and D. Directions, of F, D and H, are not clear yet, so they could be facing inside or outside.

A could be between B and D while F could be on the other side of D. Again A could be facing outside or inside. Now in case we take A, facing inside, then 2nd to his right would be H whereas we know that this position belongs to F since it is A and F who are neighbours of D. So in this position we can take A to be facing only outside. We can also add H at 2ndclockwise to A and F at the other side of D. Directions, of F, D and H, are not clear yet, so they could be facing inside or outside.

C sits third to the left of H and this clue will help us choose between the above 2 possibilities. Check the 1st diagram in point 2, whatever direction we take H to be at, the 3rd position, on his both sides, is already taken. So that one is rejected. We can continue the question further with the 2nd diagram in point 4. Also we cannot take H to be facing outside, in that case moving 3 places anti-clockwise the position will clash/overlap with D. Hence H has to face inside.

E sits to the immediate right of G. D sits third to the left of E. D faces the same direction as that of H. F sits to the immediate right of C. F and G take same directions:D is 3rd to the left of E, so one cannot take E as facing outside since in that case 3rdleft would mean the position occupied by B. Also D will face inside since his/her and H's direction is same. Now since F has to be on the immediate right of C, it means C will be between E and F and will face outside. Now E has to be at the immediate right of G, this means that G will be between E and H and will face outside. F will also face outside since it is given that F and G take same directions.
START READING FROM THE LAST 4 TH LINE AND U WILL UNDERSTAND....
is the only correct answer ..
pls mark me as brainliest..
reason of your answer is
Facing the same direction means if one faces the centre then other also faces the centre and vice versa. Facing opposite direction means if one person faces the centre then the other faces outside and vice versa.
B faces outside. D sits second to the left of B. A and F are immediate neighbours of D. H sits second to the right of A. C sits third to the left of H. E sits to the immediate right of G. D sits third to the left of E. D faces the same direction as H. F sits to the immediate right of C. F and G take same directions. Find the desired arrangement.
Solution: Let us try to solve this question clue by clue:
B faces outside:

After fixing B's position, we can see that D will be in anti-clockwise direction from B and since D is second to the left, this means there will be 1 person in between them. But we don't know the direction of D yet, so D can be facing inside or outside.

A and F are immediate neighbours of D. H sits second to the right of A. This would give rise to 4 possibilities. First, F can be between B & D and A will be on the other side of D. Secondly, A can be between B and D while F will be on the other side of D. Each case is explained below with possible directions of 'A' (inside/ outside).A is sitting at other side of D (not between B and D) and F is between B and D. Now A can face inside or outside. Now in case we take A as facing outside, then 2nd to the right would be H where as we know that this position belongs to F since it is A and F who are neighbours of D, so in this situation we can take A to be facing only inside. We can also add H as 2nd anti clockwise to A and place F between B and D. Directions, of F, D and H, are not clear yet, so they could be facing inside or outside.

A could be between B and D while F could be on the other side of D. Again A could be facing outside or inside. Now in case we take A, facing inside, then 2nd to his right would be H whereas we know that this position belongs to F since it is A and F who are neighbours of D. So in this position we can take A to be facing only outside. We can also add H at 2ndclockwise to A and F at the other side of D. Directions, of F, D and H, are not clear yet, so they could be facing inside or outside.

C sits third to the left of H and this clue will help us choose between the above 2 possibilities. Check the 1st diagram in point 2, whatever direction we take H to be at, the 3rd position, on his both sides, is already taken. So that one is rejected. We can continue the question further with the 2nd diagram in point 4. Also we cannot take H to be facing outside, in that case moving 3 places anti-clockwise the position will clash/overlap with D. Hence H has to face inside.

E sits to the immediate right of G. D sits third to the left of E. D faces the same direction as that of H. F sits to the immediate right of C. F and G take same directions:D is 3rd to the left of E, so one cannot take E as facing outside since in that case 3rdleft would mean the position occupied by B. Also D will face inside since his/her and H's direction is same. Now since F has to be on the immediate right of C, it means C will be between E and F and will face outside. Now E has to be at the immediate right of G, this means that G will be between E and H and will face outside. F will also face outside since it is given that F and G take same directions.
START READING FROM THE LAST 4 TH LINE AND U WILL UNDERSTAND....
Similar questions