MAH CET MCA Age Previous Year Questions (PYQs)
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Ten years ago, the average age of $A$ and $B$ was $20$ years. The average age of $A,B,C$ is $30$ years today. How old will $C$ be after $5$ years?
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Solution
$A+B$ (10 years ago) $=40$. Today $A+B=40+20=60$.
Today $A+B+C=3\times30=90 \Rightarrow C=90-60=30$.
After $5$ years $=30+5=35$.
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