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Question 16 - Week 5 Practice | Prasnya
Q16
00:00
4 Aug 2024
Q16.
If
10
P
r
+
3
5
P
r
=
90
\frac{{}^{10}P_{r+3}}{{}^{5}P_r}=90
5
P
r
10
P
r
+
3
=
90
, then what is the value of
7
P
2
{}^{7}P_2
7
P
2
?
A
7
B
21
C
42
D
Insufficient information
Save
Check
Details
Q16
00:00
4 Aug 2024
Q16.
If
10
P
r
+
3
5
P
r
=
90
\frac{{}^{10}P_{r+3}}{{}^{5}P_r}=90
5
P
r
10
P
r
+
3
=
90
, then what is the value of
7
P
2
{}^{7}P_2
7
P
2
?
A
7
B
21
C
42
D
Insufficient information
Save
Check
Details
