WAEC 2019 · Paper 1 · Q24

If log⁡x2=0.3\log_x 2 = 0.3, evaluate log⁡x8\log_x 8.

Worked solution (try it first)
  1. 8=238 = 2^3, so log⁡x8=3log⁡x2\log_x 8 = 3\log_x 2.
  2. 3×0.3=0.93 \times 0.3 = 0.9, option C.

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