Question

If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:

a.

1

b.

3

c.

5

d.

10

Posted under Aptitude

Answer: (b).3

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Q. If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:

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