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Question

If x=log0.6, y=log1.25 and z=log3−2log2, then the value of 5x+y−z is equal to

A
7
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B
0
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C
1
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D
2
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Solution

The correct option is C 1
x=log0.6=log610=log35=log3log5

y=log1.25=log125100=log54=log5log4=log52log2

z=log32log2

Now, x+yz=log3log5+log52log2(log32log2)=0

And 5x+yz=50=1

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