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If a doughnut cost $u, a cream puff cost $ 2u.

So 1/3 of money can buy 5 doughnuts and 2 cream puffs or 5u + 2 * 2u = 9u

2/3 of money was equivalent to 9u * 2 = 18u

18u/2u = 9

So the remaining money can buy 9 cream puffs.

Altogether , she bought 11 cream puffs. 

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