Find the probability that a hand of 7 cards drawn from a well shuffled deck of 52 cards contain exactly three kings.
Find the probability that a hand of 7 cards drawn from a well shuffled deck of 52 cards contain at least 3 kings.
Find the probability that a hand of 7 cards drawn from a well shuffled deck of 52 cards contain at most 3 kings.
(i) a five rupees coin. (ii) a two rupees coin.
(iii) a two rupees or a five rupees coin. (iv) not a one rupee coin,
(v) not a five rupees coin. (vi) a one rupee or two rupees coin.