9 years ago I was five times as old as my eldest son. Today I am 3 times his age. How old am I now?  Choose the most appropriate option
A) 34	B) 44	C) 54	D) 64	E) 74
x-9=5(y-9)   &amp; x=3y   x-9=5x/3-45   x=54   ANSWER:54
<result>C</result>
9 years ago I was five times as old as my eldest son. Today I am 3 times his age. How old am I now?