Two packs of card are thoroughly mixed and shuffled and two cards are drawn at random, one after the other. What is the probability that both of them are jack?

Total number of cards = 104
Total number of jacks = 8
∴ Probability for the jack in first draw = 8/104
and probability for the jack in second draw = 7/103
Since, both are independence events.
∴ Required probability = 8/104 x 7/103 = 7/1339