sequence

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Flea

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Jul 13, 2009
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what is the number 13 equal to in the following sequence: 1=3, 3=5, 5=4, 7=5, 9=4, 11=6, 13=?

so far I got +2, +2, -1, -2, -5, -5 but that doesn't give a pattern I can understand. what should I be doing to get the answer?
 
To start, that's not a sequence...it's a "puzzle"!
Hint: 13 = thirteen
 
Try this one Flea (or Aladdin!):

What is the next number in this sequence:
4,2,3,4,6,2,4, ?
 
Denis said:
Try this one Flea (or Aladdin!):

What is the next number in this sequence:
4,2,3,4,6,2,4, ?
Click to expand...

It is 42

It is always 42...

Answer to all the questions in the UNIVERSE is 42....
 
Subhotosh Khan said:
Denis said:
Try this one Flea (or Aladdin!):

What is the next number in this sequence:
4,2,3,4,6,2,4, ?
Click to expand...

It is 42

It is always 42...

Answer to all the questions in the UNIVERSE is 42....
Click to expand...

C'mon SK, how come ? :wink:
 

. . . . . . A Classic Joke


What is the next number in this sequence?

. . . . . \(\displaystyle 1,\:3,\:5,\:7,\:\_\)


To see the answer, highlight between the asterisks.

*
Answer: 8

These are the positive integers whose English names contain an "e".
*












 
soroban said:

. . . . . . A Classic Joke


What is the next number in this sequence?

. . . . . \(\displaystyle 1,\:3,\:5,\:7,\:\_\)


To see the answer, highlight between the asterisks.

*
Answer: 8

These are the positive integers whose English names contain an "e".
*
Click to expand...

Nice one soroban, I was going to say 9 for a second . :wink: --

Try this one

\(\displaystyle What \ is \ the \ next \ number \ in \ the \ sequence\ :\)

\(\displaystyle 9\:, 12\:, 21\:, 48\:, ...\)
 
Aladdin said:
\(\displaystyle What \ is \ the \ next \ number \ in \ the \ sequence\ :\)
\(\displaystyle 9\:, 12\:, 21\:, 48\:, ...\)
Click to expand...
HINT: the first one is 8, since 8 + 3^0 = 9
 
Denis said:
Aladdin said:
\(\displaystyle What \ is \ the \ next \ number \ in \ the \ sequence\ :\)
\(\displaystyle 9\:, 12\:, 21\:, 48\:, ...\)
Click to expand...
HINT: the first one is 8, since 8 + 3^0 = 9
Click to expand...

So .... what is the next number in the sequence ?
 
Aladdin said:
Denis said:
Aladdin said:
\(\displaystyle What \ is \ the \ next \ number \ in \ the \ sequence\ :\)
\(\displaystyle 9\:, 12\:, 21\:, 48\:, ...\)
Click to expand...
HINT: the first one is 8, since 8 + 3^0 = 9
Click to expand...

So .... what is the next number in the sequence ? 48 + 81

or it could be polynomial

y = 16*x -9x^2 +2x ? y(5) = 105


But most likely answer is 42
Click to expand...
 
Yes Mr Khan, your first answer is correct 48 + 3^4 = 48 +81 ---- Congratulations ---- you have won ( I think of the price later) :)
 
Aladdin said:
Yes Mr Khan, your first answer is correct

Why not the second (105)

or the third answer [42 ? y(x) = -63 + (589/4)* x - (2421/24) x^2 + (113/4) x^3 - (21/8) x^4]? :twisted:

48 + 3^4 = 48 +81 ---- Congratulations ---- you have won ( I think of the price later) :)
Click to expand...
 
You have more knowledge than me , I can't beat you guys --- But--- Nothing is Impossible .
 
what is the number 13 equal to in the following sequence: 1=3, 3=5, 5=4, 7=5, 9=4, 11=6, 13=?
Click to expand...

the answer is 5..or 13=5

3 is to 5..+2
5 is to 4..-1
4 is to 5..+1
5 is to 4..-1
4 is to 6..+2

therefore...the pattern starts over--> the next move would be -1
6-1=5...

i guess???
 
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