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Basic Mathematics QUESTION #4581
Question 1
Ages of A and B are in ratio $3:5$. If A is $18$ years old, how old is B?
  • $30$✔️
  • $10.8$
  • $54$
  • $23$
Correct Answer Explanation
$\frac{3}{5} = \frac{18}{x} \Rightarrow 3x = 90 \Rightarrow x = 30$