Please help the Census taker.

CA CS CIMA Prakash Somani (Landmark Group) (23502 Points)

20 June 2008  
A census taker came to a house where a man lived with
three daughters. "What are your daughters' ages?" he asked.
The man replied, "The product of their ages is 72, and the
sum of their ages is my house number."
"But that's not enough information," the census taker insisted.
"All right," answered the farmer, "the oldest loves chocolate.
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Cheers,
:) Prakso :)