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Question
Mathematics
The value of 7 log((16/15) ) +5 log((25/24)) + 3 log((81/80)) is equla to
Q. The value of
7
lo
g
(
15
16
)
+
5
lo
g
(
24
25
)
+
3
lo
g
(
80
81
)
is equla to
1656
208
BITSAT
BITSAT 2011
Report Error
A
log 2
33%
B
3
0%
C
5
33%
D
7
33%
Solution:
∴
7
lo
g
(
15
16
)
+
5
lo
g
(
24
25
)
+
3
lo
g
(
80
81
)
=
lo
g
[
(
15
16
)
7
⋅
(
24
25
)
5
⋅
(
80
81
)
3
]
=
lo
g
2