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, A, B, C, D and E are seated and all of them are facing north and in second row, F, G, H, I and J 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.  C sits exactly in the centre of the row and faces the one who likes White. J faces one of the immediate neighbours of the one who likes Black. The one who likes Yellow is not an immediate neighbour of J. G is not an immediate neighbour of I and faces the one who likes Red.  A faces the one who likes Brown. I faces immediate neighbours of E. I does not like Brown. D is an immediate neighbour of E. G does not sit at the extreme end of the line. The one who likes Cream faces north. Only one person sits between J and the one who likes White. The one who likes Pink sits to the immediate right of the person who likes Orange. J does not like Pink. F faces the one who likes Violet. F does not like White. Only two people sit between A 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
C sits exactly in the centre of the row and faces the one who likes White. Only one person sits between J and the one who likes White. So J can be either extreme right or extreme left end of the row. So here we get following two cases: (1) When J sits extreme right end of the row. J faces one of the immediate neighbours of the one who likes Black. Only two people sit between A and the one who likes Black. A faces the one who likes Brown. D is an immediate neighbour of E. So only two places left for D and E. so I can be either at 2nd or 3rd to the right of the 2nd row.  Now we know that G is not an immediate neighbour of I and faces the one who likes Red. I does not like Brown. G does not sit at the extreme end of the line. It means G sits 2nd to the left end of the 2nd row. So I sits 2nd to the right end of the 2nd row. I faces immediate neighbours of E. so E sits left end of the 1st row. F faces the one who likes Violet. F does not like White. So F sits left end of the row and H sits at the centre of the row.  The one who likes Pink sits to the immediate right of the person who likes Orange. J does not like Pink. So this case is not valid. (2) When J sits extreme right end of the row J faces one of the immediate neighbours of the one who likes Black. Only two people sit between A and the one who likes Black. A faces the one who likes Brown. D is an immediate neighbour of E. So only two places left for D and E. so I can be either at 2nd or 3rd to the left end of the 2nd row. Now we know that G is not an immediate neighbour of I and faces the one who likes Red. I does not like Brown. G does not sit at the extreme end of the line. It means G sits 2nd to the right end of the 2nd row. So I sits 2nd to the left end of the 2nd row. I faces immediate neighbours of E. so E sits right end of the 1st row. F faces the one who likes Violet. F does not like White. So F sits right end of the row and H sits at the centre of the row.  The one who likes Pink sits to the immediate right of the person who likes Orange. J 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
Â
The diameter of a circle is 75 cm less than the circumference. What is the diameter of the circle in cm?
The height of a right circular cylinder is 12m and also three times the sum of the areas of its two end faces is equal to twice the area of its curved s...
If the area of square is 441 cm²  and the breadth of rectangle is 20% more and the length is 50% more than the side of the square, then find the the a...
If the base and height of a triangle are in the ratio of 2:5 and area is 125 cm2. Find its base and height.
The ratio between the number of sides of two regular polygon is 2:5 and the ratio between their interior angles is 10:12. The number of sides of these p...
The perimeter of a rectangle is 46 cm, and the length of its diagonal is 17 cm. What is the area of the rectangle?
The length of a rectangle is 3 metres more than its width. If the perimeter of the rectangle is 50 metres then what is the area (in m2Â ) of ...
A rectangular ground is 95 metre long and 75 metre broad. If two 10 metre wide paths one parallel to the breadth and one parallel to the length, of the�...
A race track is in the shape of a rectangle with length of 22 metres and area of 2200 m2. A car takes 20 seconds to make one lap around the p...
If the curved surface area and the radius of a cylinder are 990 cm2 and 21 cm, respectively, then find the volume (in cm3) of the ...