ogoluwa

I don't think Abokhaled's answer is right because it doesn't include the impact of leverage....having said that, I don't know how to get the right answer either.

ROE is net income / average total equity

you can also use dupont, which we seem to have 2 of the 3 parts of:
(net income/revenue) * (revenue/average assets) * (average assets/average equity)

lastly i guess you could derive from the growth rate used in gordon growth model
Growth rate = ROE * Retention Rate
therefore ROE = growth rate / retention rate

But -- I still can't see how to use any of these to get the answer. Anyone?