Post subject: GMAT Number Theory (Data Sufficiency)
Posted: Mon Oct 19, 2009 3:18 pm
Joined: Sun Apr 19, 2009 6:56 pm Posts: 32
If c is a positive integer between 1 and 9, inclusive, and n = 9,446 + c, then what is the value of c? (1) n is divisible by 5. (2) n is divisible by 9.
In the last paragraph, when n is divisible by 5, "c" can be 4 or 9. In the next sentence it states, "if n is divisible by 9, you can add the digits and find what the nearby multiples of 9 are." Which digits are you adding?
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