Arjun's father is 30 years older than Arjun. Five years from now, the father will be exactly 3 times Arjun's age. What is Arjun's present age (in years)?
Competition practiceAverages & Ages
A10
B15
C5
D12
Step-by-Step Solution
Let Arjun be x. Then x+30+5=3(x+5), so x+35=3x+15 and x=10. Check: in 5 years, 45=3×15.
Answer: A) 10
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