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My father is 21 years older than me. In 12 years time, his age will be twice mine. How old am I now?
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- 9 years
- 8 years
- 10 years
- 11 years
Correct Option: A
Suppose my age = P years
My father’s age = my age + 21 years = P + 21 years
Again After 12 years ,
2 ( my age + 12 ) = My father’s age + 12
⇒ 2 (P + 12) = (P + 21) + 12
⇒ 2P + 24 = P + 33
⇒ P = 33 – 24 = 9 years
Hence , I am 9 years old now .
