Question
A father is 3 times as old as his son. After 12 years, he will be twice as old as his son. Find the son's present age. / एक पिता अपने पुत्र से 3 गुना बड़ा है। 12 वर्ष बाद वह अपने पुत्र से दोगुना बड़ा हो जाएगा। पुत्र की वर्तमान आयु ज्ञात कीजिए।
Option 2 : 12 years / 12 वर्ष
Detailed Solution
सही उत्तर 12 years / 12 वर्ष है।
Let the son's age be x; then 3x + 12 = 2(x + 12) gives 3x + 12 = 2x + 24, so x = 12 years. / मान लीजिए पुत्र की आयु x है; तब 3x + 12 = 2(x + 12) से 3x + 12 = 2x + 24 मिलता है, इसलिए x = 12 वर्ष है।
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prepsnap.in • Numerical AbilityQuestion:
A father is 3 times as old as his son. After 12 years, he will be twice as old as his son. Find the son's present age. / एक पिता अपने पुत्र से 3 गुना बड़ा है। 12 वर्ष बाद वह अपने पुत्र से दोगुना बड़ा हो जाएगा। पुत्र की वर्तमान आयु ज्ञात कीजिए।
Correct Answer: 12 years / 12 वर्ष
Let the son's age be x; then 3x + 12 = 2(x + 12) gives 3x + 12 = 2x + 24, so x = 12 years. / मान लीजिए पुत्र की आयु x है; तब 3x + 12 = 2(x + 12) से 3x + 12 = 2x + 24 मिलता है, इसलिए x = 12 वर्ष है।