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Mathematics
Mathematics
Problem
In
△
P
Q
R
\triangle PQR
△
P
QR
, a line meets
P
Q
PQ
P
Q
at
S
S
S
and
P
R
PR
P
R
at
T
T
T
such that
P
S
:
S
Q
=
P
T
:
T
R
=
2
:
3
PS:SQ = PT:TR = 2:3
P
S
:
S
Q
=
P
T
:
T
R
=
2
:
3
. Which of the following is true? a)
S
T
∥
P
R
ST \parallel PR
S
T
∥
P
R
b) No relation about parallelism can be concluded c)
S
T
∥
Q
R
ST \parallel QR
S
T
∥
QR
d)
S
T
∥
P
Q
ST \parallel PQ
S
T
∥
P
Q
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