Mathematic Quiz 16

Question:
In mathematics contest with ten problems, a student gains 5 points for a correct answer and loses 2 points for an incorrect answer. If Olivia answered every problem and her score was 29, how many correct answers did she have?

Terms and conditions:
1. Write about your answer (only answer, without description), name, class and handphone number.
2. Send via email to imamtoifur@yahoo.com with subject Mathematic Quiz 16 or sms to 081328899843 or message on Facebook.
3. Mathematic Quiz 16 is closed on December 31, 2010.
4. You are rewarded for your effort by 2 unit pulse @Rp 20.000,00.
5. Each student only sends one answer.
6. Only eSeMAN1S's students are permitted to send this Mathematic Quiz.
7. See you and good luck.

Mathematic Quiz 15
Answer : 5/3
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Winner s: Kurnia Isnaeni (XII IPA 1) and Hana Savitri Prabandani (XII IPA 2)