| A person was asked to state his age in years. His reply was, "take my age 3 yr hence, multiply it by 3 and then subtract 3 times my age 3 yr ago and you will know how old I am." What was the age of the person? |
A) 24 yr
B) 20 yr
C) 32 yr
D) 18 yr
Correct Answer: D
Solution :
| Let the present age be x yr. |
| According to the question, |
| \[x=3\,\,(x+3)-3\,\,(x-3)\] |
| \[\Rightarrow \] \[x=3x+9-3x+9\] |
| \[\Rightarrow \] \[x=18\,\,yr\] |
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