Question

3)How many cards of one type are there ​

Answer 1

Answer:

where.........here

where ❣❣

bolo

Answer 2

Answer:

We can also consider a single kind, without identifying the specific card being sought.

The number of ways to have three of the same kind (often simply called "three of a kind" by card players) is   (13C1)(4C3)=13×4=52(13C1)(4C3)=13×4=52. The computation involved identifying the particular kind, then choosing 3 of the 4 cards of that kind.