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If n is a positive integer, what is the tens digit of n ?
Hi all, I am having a hard time understanding how Statement (2) is being explained, can someone please explain this in detail as I don't understand how n equals either 70 or 69, and how the statement is being incorporated in the explanation, how is n+1=7 being used in realizing statement (2) is NOT ...
- by Azzaya
Mon Jul 31, 2017 8:28 am- Forum: Data Sufficiency
- Topic: If n is a positive integer, what is the tens digit of n ?
- Replies: 4
- Views: 3610
a, b, and c are three distinct positive integers. What is the product abc? 1) a + b + c = 7 2) ab + bc + ca = 14 Statement 1: Test the SMALLEST POSSIBLE CASE. If the three distinct positive integers are 1, 2 and 3, then their sum is 6. Too small. Test the NEXT GREATEST CASE. If the three distinct p...
- by Azzaya
Sun Jul 23, 2017 6:40 am- Forum: Data Sufficiency
- Topic: Product of abc
- Replies: 5
- Views: 4530