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- May 16th, 2013, 12:58 pm
- Forum: GMAT Preparation
- Topic: GMAT Preparation - Technical Questions
- Replies: 20
- Views: 58094
Re:Answer to 'I need to review permutation'
Hi, The review of the above question by 800score according to me is as follows. In the above questions first you have to understand how many places are required to be filled in. The area code has to be a three digit number. So, the number of places are 3. The first digit can only be any number from ...