Rajani has three necklaces and three pairs of earrings, of green, blue and red stones In what all different ways can she wear them? What is the probability of her wearing the necklace and earrings of the same colour? Of different colours?

60 shirts of different colours are on sale. If one shirt is chosen at random what is the probability that it is red ?

60 shirts of different colours are on sale. If one shirt is chosen at random what is the probability that it is small, given that it is blue ?

In how many ways can 7 beads of different colours form a necklace?

There is one spot at one side of the cube, two on another side, three on the third side and so on. There are spots on all the six faces, in this order. An other cube which is marked in the same way is taken.If both the cubes are thrown,what is the probability that the total number of spots on the upper faces is 6?

There is one spot at one side of the cube, two on another side, three on the third side and so on. There are spots on all the six faces, in this order. An other cube which is marked in the same way is taken. What is the probability that the sum of the spots on the upper faces is 9?