What quantity must be added to each term of the ratio x: y so that it may become equal to c: d? - Noon Academy

What quantity must be added to each term of the ratio x: y so that it may become equal to c: d?

Class 10 | Exercise 7D | ICSE | Ratio and Proportion | Selina

What quantity must be added to each term of the ratio x: y so that it may become equal to c: d?

Let the required quantity which has to be added be p.

Concise Selina Solutions Class 10 Maths Chapter 7 ex. 7(D) - 5

$\begin{array}{*{35}{l}} dx\text{ }+\text{ }pd\text{ }=\text{ }cy\text{ }+\text{ }cp \\ pd\text{ }-\text{ }cp\text{ }=\text{ }cy-\text{ }\text{ }dx \\ p\left( d\text{ }-\text{ }c \right)\text{ }=\text{ }cy\text{ }-\text{ }dx \\ p\text{ }=\text{ }cy-\text{ }dx/\text{ }\left( d\text{ }-\text{ }c \right) \\ \end{array}$

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