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Question

Twenty years from now, Arjun will be three times as old as he is now. His present age is years.

A
15
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B
10
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C
12
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Solution

The correct option is B 10
Let Arjun be x years old now.

After 20 years, his age will be x+20 years.
According to question,
x+20=3x.
3xx=20
2x=20
x=202=10
Therefore, Arjun's present age is 10 years.

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