Ouestion 3

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waecmaths question: 

In what number base is the addition of 465 + 24 + 225 =1050

Option A: 

ten

Option B: 

nine

Option C: 

eight

Option D: 

seven

waecmaths solution: 

$\begin{align}  & 465 \\ & +24 \\ & \underline{+225} \\ & \underline{1050} \\\end{align}$ A close observation show that it is in base seven (base 7)

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