CAT Practice : Exponents and Logarithms

2 can be expressed as a power of 3, 3 can be expressed as a power of 5. Do not live in the world that has only rational numbers; it is irrational to do that.

Logartihm - Algebra

    Q.4: If log1227 = a, log916 = b, find log8108.


  • Correct Answer
    Choice D.

Explanatory Answer

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Detailed Solution

log8108 = log8(4 × 27)
log8108 = log84 + log827
log84 =
log827 =
log827 =
log827 = log1627
log827 =
log827 =
log827 = 2 × log169
log916 = b
log169 =
log827 =
log8108 =
= . Answer choice (D)

Correct Answer:

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