alleryપિતાની ઉંમર તેના પુત્રની ઉંમર કરતાં ત્રણ ગણી છે. 12 વર્ષમાં તેમની ઉંમર પુત્ર કરતાં બમણી થઈ જશે. પિતાની અત્યારની ઉંમર છે
A36
B48
C30
D42
Answer & Solution
Correct answer: A. 36
3x + 12 = 2(x + 12) પરથી, x = 12, તેથી પિતાની ઉંમર 36 છે.
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