Find the total number of possible pairs of
**
5
**
cards
**
(No arrangememt)
**
chosen from a deck of 52 cards that contains

**
3 face cards, 1 king and 1 spade
**
.

(
**
Without replacement
**
, i.e we are not picking up 1 card and keeping it back and choosing the other card, rather we are choosing 5 cards at once. )

By pairs I mean, Example : 1,2,3,4,5,6,7,8,9 will have $\displaystyle 9 \choose 5$ pairs of 5 numbers

The answer is 4851.

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Check out my solution here