Question

Q1. Solve:

a) 10/5=b/12.5

(Give answer with full workings)​

Answer 1

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Answer provided in photo

Answer 2

$\frac{10}{5} = \frac{b}{12.5} \\ \\ \frac{10}{5} = \frac{b \times 10}{125} \\ \\ \frac{10 \times 125}{5 \times 10} = b \\ \\ b = 25.$