Explanation
$${\textbf{Step -1: Converting rupees to paise}.}$$
$${\text{We know that, 1 Rupee = 100 paise}}$$
$$\therefore {\text{ 5 Rupees = }}\dfrac{{{\text{5 }} \times {\text{ 100}}}}{{\text{1}}}{\text{ paise}}$$
$$ \Rightarrow {\text{ 5 Rupees = 500 paise}}$$ $$\quad \quad \text{......eqn (i)}$$
$${\textbf{Step -2: Substitute the above result and find the required ratio}.}$$
$${\text{Ratio of 5 Rupees}}{\text{ to 50 paise }}$$$$ = {\text{ }}\dfrac{{{\text{5 Rupees}}}}{{{\text{50 paise}}}}$$
$$ = {\text{ }}\dfrac{{{\text{500 paise}}}}{{{\text{50 paise}}}}$$ $$\quad \quad \textbf{[From eqn (i)]}$$
$$ = {\text{ 10:1}}$$
$${\textbf{Thus, the ratio of 5 Rupees to 50 paise is 10:1}.}$$
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