Question

if p/q=r/s=2.5:1.5 then find ps:qr

Answer 1

Hey here is your answer
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$\frac{p}{q} = \frac{r}{s} = \frac{2.5}{1.5} \\ \\ \frac{p}{q} = \frac{2.5}{1.5} \\ \\ \: \: \: .... \: \: 15p = 25q ....(1)\: \: \: \: \: \\ \\ \frac{r}{s} = \frac{2.5}{1.5}\\ \\ \: \: \: .... \: \: 15r = 25s ....(2)\: \: \\ \\ now \: multiplying \: eq. \: 1 \: and \: 2 \: we \: get \\ \\ 15p \times 25s = 15r \times 25q \\ 375ps = 375qr \\ \\ \frac{ps}{qr} = \frac{375}{375} \\ \\ \frac{ps}{qr} = \frac{1}{1}$
ps : qr :: 1 : 1
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Answer 2

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