Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
In parallelogram
P
Q
R
S
PQRS
P
QR
S
, let
T
T
T
and
U
U
U
be the midpoints of
P
Q
PQ
P
Q
and
P
S
PS
P
S
respectively. Segment
T
U
TU
T
U
intersects diagonal
P
R
PR
P
R
at
N
N
N
. What is the ratio
P
N
:
N
R
PN:NR
P
N
:
N
R
? a)
1
:
2
1:2
1
:
2
b)
1
:
3
1:3
1
:
3
c)
2
:
3
2:3
2
:
3
d)
1
:
1
1:1
1
:
1
Browse the problem library