tusharp No kinds mean Ace, 2 ,3, 4 ,5,....
after selecting any 2 kinds for pairs we selected total 8 cards because there are 4 cards of each kind(1 from every suit).
From those 8 cards we need to select 1 pair of each kind. So for selecting 2 pairs $\binom{4}{2} \times \binom{4}{2}$
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