2012-06-11 09:00:03

Three years ago, Douglas was three times as old as Cody. This year, Cody is twice as old as Jillian. If Jillian were 7 three years ago, how old is Douglas now?

(A) 10
(B) 17
(C) 20
(D) 41
(E) 44

The correct choice is E

Explanation: Start by finding Jillian’s age. If she were 7 three years ago, she’d be ten now. Cody is currently twice as old as Jillian, so he’s 20 now. Three years ago, Cody would have been 17, and if Douglas was three times as old as Cody three years ago, then he would’ve been 41 then. That would make Douglas’s current age 44.

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