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Question

log5625+log3243+log7343

A
3
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B
5
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C
9
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D
12
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Solution

The correct option is B 12
log5625+log3243+log7343

=log554+log335+log773

=4log55+5log33+3log77 [logabn=nlogab]

=4+5+3 [logaa=1 ]

=12


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