If 3loga + 5loga – 6loga = log64, what is a?

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Mathematics WAEC 1989

If 3loga + 5loga – 6loga = log64, what is a?

  • 4
  • 6
  • 8 checkmark
  • 16
  • 32

The correct answer is: C

Explanation

loga3 + loga5 - loga6
log(
a3 * a5/a6
) = loga64


a2 = 64 a = 8
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