A box has 2 marbles each of red, blue yellow and green colours. The box is kept in a dark room where the colours of the marbles cannot be distinguished. A boy wants 2 marbles of the same colours. How many different marbles he must draw from the box so that he is sure that he has got 2 marbles of the same colour?
How many minimum number of different colours a painter must use to paint the figure below, so that no two adjacent regions have the same colour?
How many squares are there in the given figure?
How many bones are in Shark Fish? 100 0 200 300
Which letter would be placed in after BDGK?
A, Q, Y, Z, are different persons. Z is the father of Q, A is the daughter of Y and Y is the son of Z. If P is the son of Y and B is the brother of P then
