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Post by Devantè on Oct 15, 2006 11:03:24 GMT -5
These questions are to be answered without pen and paper, and to be done in 10 seconds with pure logical and mathematical skills.
(1) Is 1298045602 a perfect square?
(2) Is 6719247 a prime number?
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Post by Devantè on Oct 15, 2006 11:14:30 GMT -5
(3) How many times would you have to write the number 6 when you write from 1 to 100?
(4) A bus contains 23 men and 14 women. In the first stop after the start, 11 men board and 2 women do. In the next stop, 6 men board and 3 women do. In the next, 2 men alight and 2 women do, but also 2 men board the bus and 2 women do. The question is, how many places did the bust stop from the start to the destination? (You are granted 20 seconds for this, as a special case!)
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Post by Devantè on Oct 15, 2006 11:15:08 GMT -5
(5) In the realm of whole numbers, apart from zero and one, which the smallest number which is both a perfect square and a perfect cube?
(6) What is the angle between the hands of a clock when the time is 8.00?
(7) What is the side total of a 3X3 magic square with numbers from 1 to 9?
(8) How many zeros does a trillion (US) contain?
(9) What are the common factors of 111, 222, 333, 444, 555, 666, 777, 888, and 999? (Four of them)
(10) How many furlongs is a mile?
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Post by Devantè on Oct 15, 2006 11:15:29 GMT -5
11. What is so special about the number 2.7182818284.... to mathematicians?
12. How many nano seconds is a second?
13. Which number has got the highest probability of being displayed when a pair of dice is cast?
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Post by Devantè on Oct 15, 2006 11:15:48 GMT -5
14. How many seconds is an hour?
15. How many digits is 22/7 a correct aprroximation of pi?
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Post by Devantè on Oct 15, 2006 11:16:15 GMT -5
16. How many prime numbers are there from 1 to 100?
17. How many numbers, including 7, are divisible by 7 from 1 to 100?
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Post by Devantè on Oct 15, 2006 11:17:09 GMT -5
18. If 1000 kilobytes is a megabyte,
1000 megabytes a gigabyte, what is 1000 gigabytes?
19. What would be the last digit of 6^100?
20. Is 1001 a prime number?
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Post by Devantè on Oct 15, 2006 11:17:37 GMT -5
21. Is 133 a prime number?
22. How many squares are there from 1 to 1000, inculding 1?
23. And how many cubes?
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Post by Devantè on Oct 15, 2006 11:17:55 GMT -5
24. Whats special about the number 0.4771................?
25. How many cubes, including 1, are there from 1 to 1000?
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Post by Devantè on Oct 15, 2006 11:18:10 GMT -5
26. What is 6 x 6 x 6?
27. Is 343 a prime number?
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Post by Devantè on Oct 15, 2006 11:18:45 GMT -5
28. What is 6!?
29. Aprroximately how many kilometers is a light year?
30. What is sin45+cos45 (degrees)?
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Post by Devantè on Oct 15, 2006 11:19:08 GMT -5
31. How many kilometers is a mile approximately?
32. How many pounds is a kilogram approximately?
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Post by Devantè on Oct 15, 2006 11:19:23 GMT -5
33. How many zeros does a quintillion (US) contain?
34. What is special about the number 26?
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Post by Devantè on Oct 15, 2006 11:20:10 GMT -5
35. What is special aout the number 1729? (Ramanujan Number)
36. How many kilometers is earth away from the sun (approximately)?
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Post by Devantè on Oct 15, 2006 11:21:32 GMT -5
37. How many bytes make a kilobyte?
38. What is the memory of a 3 1/2 floppy?
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