CAT Question of the Day If p, q and r are in arithmetic progression, the line px + qy + r = 0 necessarily intersects which of the following circles?
| OPTIONS | | |  | 1) | x2 + y2 + 4x – 4y + 7 = 0 | | | 2) | x2 + y2 – 6x + 6y + 13 = 0 | | | 3) | x2 + y2 – 4x – 6y + 9 = 0 | | | 4) | x2 + y2 + 8x = 0 | | | 5) | Cannot be determined |
Tip of the Day While building your vocabulary, make sure to understand the usage of the word along with its meaning. This can be done by memorizing the meanings and making mental notes of their usage whenever these learnt words appear in any text that you might be reading. Last year's Question of the day (15-Mar-11) Call a set 'non-inclusive' if no three consecutive integers are in it. How many subsets of the set {1, 2, 3, ..., 10} are non-inclusive?
| OPTIONS | | | | | 1) | 504 | | | 2) | 274 | | | 3) | 512 | | | 4) | 457 |
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