Answer:
I am 42 years old
Explanation:
Given : In 2 years i will be twice as old as i was 20 years ago.
To Find : Current age
Solution :
Let the current age be x years.
After two years i will be (x+2) years
20 years ago i was (x-20)years
Since we are given that in 2 years i will be twice as old as i was 20 years ago.
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⇒

Thus my current age 'x' = 42 years.
Hence i am 42 years old