Six boxes of different colours were stacked one above the other in an almirah. Pink coloured box was placed below Blue coloured box, which was placed immediately above the Green coloured box. Neither the Red nor Purple coloured box was placed at the bottom of the stack. Pink coloured box was placed below the Black coloured box, which was placed at the gap of 2 boxes below Purple coloured box. Red coloured box was not placed adjacent to Black coloured box.