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UPSC NDA 2 2012 Mathematics Paper
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© examsnet.com
Question : 11
Total: 120
If
(
log
3
x
)
(
log
x
2
x
)
(
log
2
x
y
)
=
log
x
x
2
, then what is
y
equal to?
4.5
9
18
27
Validate
Solution:
log
x
log
3
⋅
log
2
x
log
x
⋅
log
y
log
2
x
=
2
∴
log
3
y
=
2
⇒
y
=
9
© examsnet.com
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