Red, Blue, Yellow, Green, Brown, and Black are six coloured cards kept one over the another in random order. The lowermost card is numbered 1, the card above it 2, and so on till the topmost card is numbered 6.
Black card is numbered as 3. Blue card and Brown cards are below Black card. Green card is below Red card but above Yellow card . Which Coloured card is numbered 4?
1
Red
2
Brown
3
Yellow
4
Blue