How can we find the ratio of x+21 to y+21 if we know the ratio of x to y is 5:2 and the ratio of x+4 to y+4 is 7:4?
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How can we find the ratio of x+21 to y+21 if we know the ratio of x to y is 5:2 and the ratio of x+4 to y+4 is 7:4?
The ratio of x to y is 5:2 means
The ratio of x+4 to y+4 is 7:4 means
\Rightarrow 4(x+4)=7(y+4) [/tex]
and
Therefore the ratio of x+21 to y+21 will be given by the following expression
Thank you very much!!:)