Jambmaths question:
If log7.5 = 0.8751, evaluate 2log75 + log750
Option A:
6.6253
Option B:
66.252
Option C:
66.253
Option D:
6.6252
Jamb Maths Solution:
$\begin{align} & 2\log 75+\log 750 \\ & =2(\log 7.5+log10)+(\log 7.5+\log 100) \\ & =2(0.8751+1)+(0.8751+2) \\ & =2(1.8751)+(2.8751) \\ & =3.7502+2.8751 \\ & =6.6252 \\\end{align}$
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