CAT Question of the Day Let a, b, c, x are real numbers such that abc ≠ 0 and    Which of the following is always true? | OPTIONS | | |  | 1) | If a + b + c = 0 then a = b = c | | | 2) | If a + b + c ≠ 0 then a = b = c | | | 3) | If a + b + c = 0 then a ≠ b ≠ c | | | 4) | If a + b + c ≠ 0 then a = b = c = 0 |
Tip of the Day In DI questions involving pie-charts, the degrees of all sectors should be converted to percentages as most of the questions revolve around this conversion. Also, while converting all degrees into percentages in one go, the chances of making calculation errors reduce. Last year's Question of the day (16-Nov-11) Sumit and Nirveek play a game of cards. They only have half a standard pack of cards. Sumit draws two cards and replaces them back. Nirveek again repeats the same process. What is the probability that both of them draw exactly one common card.
| OPTIONS | | | | | 1) | 0.0056 | | | 2) | 0.060 | | | 3) | 0.065 | | | 4) | None of these |
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