Question
Who among the following person sits immediate right of
A? Study the following information carefully and answer the questions given below. Eight persons are sitting in two parallel rows facing towards each other. In row 1 – A, B, C, and D are sitting and facing towards north while in row 2 – P, Q, R, and S are sitting and facing towards south, but not necessarily in the same order. They like different colours – Red, Yellow, Green, Blue, Black, Orange, White and White. Only one person sits between A and the one who faces the one who likes white, who doesn’t sit at the ends of the row. D sits immediate right of the one who faces the one who likes white. Only one person sits between Q and the one who faces D. P is the only neighbour of the one who faces the one who likes yellow, who doesn’t face Q. C sits second to the left of the one who faces the one who likes red, which is not liked by R. The one who likes green sits to the left of C, who doesn’t like orange. D neither likes blue nor white. As many persons sit to the right of B as to the left of the one who likes orange.Solution
We have, Only one person sits between A and the one who faces the one who likes white, who doesn’t sit at the ends of the row. D sits immediate right of the one who faces the one who likes white From this condition, there are two possibilities
Again we have, Only one person sits between Q and the one who faces D. P is the only neighbour of the one who faces the one who likes yellow, who doesn’t face Q.
Again we have, C sits second to the left of the one who faces the one who likes red, which is not liked by R. The one who likes green sits to the left of C, who doesn’t like orange. D neither likes blue nor white. As many persons sit to the right of B as to the left of the one who likes orange from the above condition, case 1 gets eliminated. Hence, case 2 shows the final arrangement.
So final arrangment- 
A boat covers 36 km downstream in 3 hours and 24 km upstream in 4 hours. Find the speed of the boat in still water and the speed of the stream.
A boat takes 1/12th time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the curren...
A boat can move downstream at 30 km/h and upstream at 18 km/h. If it takes the boatman 10 hours to travel a total of (p + q) km upstream when the stream...
When travelling downstream, a boat takes 6 hours to travel 240 km. If the speed of the stream is (3/8)th of downstream speed of the boat, the...
Find the total distance covered by boat in each upstream and downstream in 6 hours if the speed of boat in still water and speed of current is 18 km/h a...
The speed of a boat in still water is three times the speed of the boat upstream. If the boat takes 30 minutes to cover 30 km downstream, then find the ...
A boy can swim a certain distance downstream in 3 hours and return in 8 hours. If the rate of stream is 5 kmph then what is the speed of boy in still wa...
A man can row his boat with the stream at 15 km/h and against the stream in 8 km/hours. The man’s rate isÂ
The ratio of the speed of the boat in upstream to that of in downstream is 5:9, respectively. If the speed of the current is 7 km/h, then find the speed...
A boat has a speed of 52 km/h in still water. It takes 8 hours to travel from point B to point A downstream. The total distance between the two points ...