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Ratio and Proportion (Including Sharing in a Ratio) — MATHS STD 7 — Question

ICSE BoardEnglish MediumSTD 7MATHSRatio and Proportion (Including Sharing in a Ratio)2 Marks
Question
Find the mean proportional between 0.9 and 2.5
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Answer

Mean proportional between 0.9 and 2.5
$ \begin{aligned} & =\sqrt{0.9 \times 2.5} \\ & =\sqrt{\frac{9}{10} \times \frac{25}{10}} \\ & =\sqrt{\frac{225}{100}}=\frac{15}{10} \\ & =1.5 \end{aligned} $

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