Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#26 2009-02-08 01:58:32

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

(xxii) 6, 28, 496, _____.

(xxiii) 2, 4, 10, 20, 40, 100, 200, 400, 1000, ______, ______.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#27 2009-02-08 02:52:51

mathsyperson
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Registered: 2005-06-22
Posts: 4,900

Re: Complete the series....



Why did the vector cross the road?
It wanted to be normal.

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#28 2009-02-08 03:00:01

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#29 2009-02-09 02:17:35

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

Both the answers are correct!
well done, mathsyperson and JaneFairfax!!!

(xxiv) B, C, F, H, ____, _____.

(xxv) 3, 7, 31, 211, 2311, _____.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#30 2009-02-11 09:31:25

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#31 2009-02-12 01:05:17

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

Both correct, JaneFairfax!
e2.gif

(xxvi) bc, fg, jk, pq, ______.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#32 2009-02-12 05:53:58

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#33 2009-02-12 16:11:00

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

Correct, JaneFairfax!
Good work!!!

(xxvii) 7, 8, 5, 5, 3, 4, ____, _____.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#34 2009-02-12 17:22:57

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#35 2009-02-13 02:06:27

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

Correct, JaneFairfax!
Excellent!!!


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#36 2009-02-13 02:17:37

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

(xxviii) 2, 3, 4, 5, 7, 8, 9, 11, 13, 16, 17, 19, 23, 25, 27, 29, 31, 32, 36, _____, _____.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#37 2009-02-14 17:32:58

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

(xxix) 25, 121, ____.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#38 2009-02-15 02:37:03

Muggleton
Member
Registered: 2009-01-15
Posts: 65

Re: Complete the series....

JaneFairfax, how did you get the answer to (xxvii)? dunno

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#39 2009-02-15 02:53:51

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

Now you mention it, I’m danged if I can remember! eek

The answer probably came to me in a flash of inspiration; now it’s gone. faint

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#40 2009-02-15 03:36:34

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

Muggleton wrote:

JaneFairfax, how did you get the answer to (xxvii)? dunno

Muggleton,


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#41 2009-02-15 03:45:10

Muggleton
Member
Registered: 2009-01-15
Posts: 65

Re: Complete the series....

Ooh! big_smile It looks all so simple once you know the answer that it makes you feel kinda stupid wondering why you never thought of it before. roll

Thanks. smile

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#42 2009-02-15 03:48:55

Jai Ganesh
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Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

A pleasure, Muggleton! But I have to tell you, both (xxviii) and (xxix) aren't that simple lol


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#43 2009-02-18 07:10:01

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#44 2009-02-18 08:17:09

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#45 2009-02-18 16:36:57

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

Answers to (xxix):-
Both the answers are perfectly right,  mathematically. Truly commendable effort!
Keep it up, JaneFairfax!


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#46 2009-02-19 08:24:13

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#47 2009-02-19 16:32:31

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

You are perfectly right, JaneFairfax! 36 shouldn't have figured in the series! That was a blunder!!! Thnks for telling me I put a wrong number in the question....I'd have to be slower, with a much greater degree of accuracy!!!
You have solved the puzzle!
congrats501.jpg

(xxx) e, n, d, d, d, n, ____, ____

(xxxi) 1, 100, 1001, 10000, _______, _______.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#48 2009-02-20 00:53:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

(xxxii) 1, 1, 1, 2, 3, 3 , 4, 5, _____, _______.

(xxxiii) 1, 2, 4, 19, 19, ______, ______. (This question is dedicated to Robin Alderman!)


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#49 2009-02-20 11:22:05

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: Complete the series....

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#50 2009-02-20 20:33:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: Complete the series....

fntstc622.gif


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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