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There are four boxes, i.e. P, Q, R and S, which are kept one above the other but not necessarily in the same order. The boxes are of different colours, i.e. White, Red, Black and Brown, but not necessarily in the same order.
Only two boxes are kept between box P, which is Brown in colour, and the Black coloured box.
Brown coloured box is not kept at the top.
There is one box kept between box Q and the Red coloured box.
Box R is not of White colour.
Which of the following is the colour of box S?

  • A.White
  • B.Black
  • C.Brown
  • D.Red

Answer: A

S is White. Only two boxes lie between the Brown box P and the Black box, so they are at the two ends. Brown is not at the top, so Black is on top and P is at the bottom. One box lies between Q and the Red box, so Q is the top Black box and the Red box is third.

White is then second. R is not White, so R is the Red box, and the remaining box S is White. Black, Brown and Red belong to Q, P and R.

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