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GATE Overflow Test Series | Quantitative Aptitude | Test 1 | Question: 9

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Let Kavya's present age be $'x'$ years.
 
 Now, $x + 15 = 3(x - 3)$
 
 $\implies x + 15 = 3x - 9$
 
 $\implies x - 3x = -9 - 15$
 
 $\implies = -2x = -24$
 
 $\implies x = 12.$
 
 So, the correct answer is $(A).$
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