Question
Who amongst the following is an immediate neighbour of
the one who likes Black? Read the information carefully and answer the given question . Ten people are sitting in two parallel rows, containing five people. In one row, M, N, O, P and Q are seated and all of them are facing north and in second row, R, S, T, U and V are seated and all of them are facing south, not necessarily in the same order. Each person also likes a different Colour namely, Pink, Red, Green, Yellow, White, Black, Orange, Brown, Violet, Cream, not necessarily in the same order.  O sits exactly in the centre of the row and faces the one who likes White. V faces one of the immediate neighbours of the one who likes Black. The one who likes Yellow is not an immediate neighbour of V. S is not an immediate neighbour of U and faces the one who likes Red.  M faces the one who likes Brown. U faces immediate neighbours of Q. U does not like Brown. P is an immediate neighbour of Q. S does not sit at the extreme end of the line. The one who likes Cream faces north. Only one person sits between V and the one who likes White. The one who likes Pink sits to the immediate right of the person who likes Orange. V does not like Pink. R faces the one who likes Violet. R does not like White. Only two people sit between M and the one who likes Black. The one who likes Green sits opposite to the person who sits left of the person who likes Pink.       ÂSolution
O sits exactly in the centre of the row and faces the one who likes White. Only one person sits between V and the one who likes White. So V can be either extreme right or extreme left end of the row. So here we get following two cases: (1) When V sits extreme right end of the row  V faces one of the immediate neighbours of the one who likes Black. Only two people sit between M and the one who likes Black. M faces the one who likes Brown. P is an immediate neighbour of Q. So only two places left for P and Q. so U can be either at 2nd or 3rd to the right of the 2nd row.  Now we know that S is not an immediate neighbour of U and faces the one who likes Red. U does not like Brown. S does not sit at the extreme end of the line. It means S sits 2nd to the left end of the 2nd row. So U sits 2nd to the right end of the 2nd row. U faces immediate neighbours of Q. so Q sits left end of the 1st row. R faces the one who likes Violet. R does not like White. So R sits left end of the row and T sits at the centre of the row.  The one who likes Pink sits to the immediate right of the person who likes Orange. V does not like Pink. So this case is not valid. 
(2) When V sits extreme right end of the row V faces one of the immediate neighbours of the one who likes Black. Only two people sit between M and the one who likes Black. M faces the one who likes Brown. P is an immediate neighbour of Q. So only two places left for P and Q. so U can be either at 2nd or 3rd to the left end of the 2nd row. Now we know that S is not an immediate neighbour of U and faces the one who likes Red. U does not like Brown. S does not sit at the extreme end of the line. It means S sits 2nd to the right end of the 2nd row. So U sits 2nd to the left end of the 2nd row. U faces immediate neighbours of Q. so Q sits right end of the 1st row. R faces the one who likes Violet. R does not like White. So R sits right end of the row and T sits at the centre of the row.  The one who likes Pink sits to the immediate right of the person who likes Orange. V does not like Pink. The one who likes Green sits opposite to the person who sits left of the person who likes Pink. The one who likes Cream faces north.     
Â
A and B together can complete a work in 15 days, while B and C together can complete the same work in 20 days. If A, B, and C together can complete the ...
A and B together can do a piece of work in 30 days, B and C together can do it in 20 days. A starts the work and works on it for 5 days, then B takes it...
Pawan and Qureshi can individually complete a certain task in 5 hours and 15 hours, respectively. Pawan begins the task at 9:00 a...
A does 1/2 work and B does 3/4 work in the same time. Difference between number of days taken by A and B to work alone to complete the work individually...
Aman, Arun and Abraham can complete a work in 12, 20 and 24 days respectively. They all start working together. Aman left the work 1 day before its comp...
A can complete a work in 18 days. B takes 6 days less than A to complete the same work. In how many days can both of them together complete 50% of the w...
Rajesh and Bhupesh can complete a piece of work in 20 days and Bhupesh alone in 25 days. In how many days can Rajesh alone complete the work?
 P can do a work in 20 days, Q in 30 days. They work together, but P leaves 5 days before completion. Find total time.
Efficiency of a man is 25% more than that of a woman. (2n + 4) men working 8 hours a day can complete a task in 18 days, whereas (3n - 2) women working...
3 men, 4 women and 5 boys can do a piece of work in 15 days, 20 days and 25 days respectively. For first 3 days 3 men and 2 women work together and for ...
Relevant for Exams:
