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Find the value of r.A. 3B. 24C. 12D. 2
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Find the value of r.A. 3B. 24C. 12D. 2

User TSL
by
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1 Answer

2 votes

The value of r can be found as follow

We will use the relationship


RU=UA


18-2r=4r

Collecting like terms


\begin{gathered} 2r+4r=18 \\ 6r=18 \end{gathered}

Divide both sides by 6


r=(18)/(6)=3

r=3

Answer = A

User Shruti
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