Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Combinatorics
hard
0:00.0
Find
n
n
n
if
C
(
2
n
,
3
)
:
C
(
n
,
3
)
=
11
:
1
C(2n, 3) : C(n, 3) = 11 : 1
C
(
2
n
,
3
)
:
C
(
n
,
3
)
=
11
:
1
.
A
6
B
5
C
7
D
8
Submit Answer