Question 6

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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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