alleryஒரு தந்தையின் வயது அவரது மகனின் வயதைப் போல மூன்று மடங்கு ஆகும். 12 ஆண்டுகளில் அவரது வயது மகனின் வயதைப் போல இரு மடங்காக இருக்கும். தந்தையின் தற்போதைய வயது
A36
B48
C30
D42
Answer & Solution
Correct answer: A. 36
3x + 12 = 2(x + 12) என்பதிலிருந்து, x = 12, எனவே தந்தையின் வயது 36 ஆகும்.
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