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Questions tagged [number-sequence]

A puzzle that asks for the pattern in a given number sequence.

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0
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0answers
21 views

What is the next number in the sequence and why?

7 4 11 2 14 5 18 3 21 ? Find the next number in the sequence?
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0answers
25 views

Need help in this number puzzle / reasoning [on hold]

I came across this number puzzle . I need help for solving . I think it has something do with square . The centre number is perfect square
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1answer
57 views

Find the missing number (number sequence puzzle) [duplicate]

Find the missing number 56784 = 4 11111 = 0 72348 = 3 88652 = 5 88811 = 6 75213 = 0 65465 = 3 62257 = ? I found this quiz in an archive of our company's ...
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2answers
152 views

Is there any pattern involved in the following sequence? [on hold]

Consider the numerical sequence $$800,1600,4800,6400,12000,6400, \cdots.$$ Is there any pattern involved in this sequence? I am very curious to know that. This puzzle is from a FlipKart Daily Quiz. ...
15
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1answer
1k views

Find d this ones stumped me help?

This one is annoying me so much. Got this from a maths teacher.
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1answer
104 views

Figure out the pattern

$0,4,8,21,52,65,96$ Given this set of numbers figure out the pattern they follow and write down the next seven numbers in the sequence. Hint:
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0answers
141 views

How do you solve this puzzle? [closed]

I don't know how to solve it. Please help me.
36
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3answers
7k views

What is the next number in the series: 21, 21, 23, 20, 5, 25, 31, 24,?

I came across a puzzle from a workbook for primary school students who wish to sit in exams for enrolling to selective high schools, which asks about what is the next number in the series. What ...
-3
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2answers
239 views

Next number in the sequence?

What is the next number in this sequence? 0, 6, 12, 19, 27, 35, 45, 54, 63, ? Good luck! HINT:
10
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1answer
220 views

The music of the heavens

A monastery has a curious practice: they call it the music of the heavens. The monks cycle through a cave with cups, to a stalactite at the center, which drips water. But this is not a steady ...
1
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1answer
87 views

Missing number in the table [closed]

This is my 3x3 grid: $$\begin{matrix} 2 & 6 & 8 \\ 3 & 7 & 3 \\ 6 & 4 & x \end{matrix}$$ Here x should be replaced with some number. Based on the solutions it should be x=1. ...
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1answer
83 views

What number should be in the place of “?”

I'm trying to solve this puzzle. Numbers are at triangle, and I have to solve ?-mark: 5 6 1 7 2 5 ? 7 5 Based on solutions it ...
-3
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1answer
420 views

A sequence to continue, if you know how

What's the next number in this finite sequence? 3, 3, 3, 3, 5, 2, 3, 3, 3, 2, 4, 2, 2, 3, 2, 3, 5, 3, 4, 4, 4, 3, 3, 1, 3, 5, 4, 5, 2, 3, 5, 2, 3, 3, 1, 4, 3, 1, 4, 2, 3, ? Hint added later: Hint ...
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1answer
216 views

What is the missing number in the question mark?

What is the missing number in the question mark? (My own puzzle) $(4, 3, 2),(4, 4, 4),(7, 9, 3),(8, 8, 4),(4, 12, 2),( 5, ?, 10)$ A) $1$ B) $3$ C) $5$ D) $10$ E) $66$ F) $14$
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0answers
110 views

What is the next number in this sequence [closed]

3, 8, 24, 72, 213, 668, 2064, 6312, ... What's the next number? This sequence mod 3 is 0, 2, 0, 0, 0, 2, 0, 0; mod 2 is 1, 0, 0, 0, 1, 0, 0, 0; mod 5 is 3, 3, 4, 2, 3, 3, 4, 2. And there seems to ...
2
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1answer
222 views

Continuation of a number sequence

What numbers are next in this sequence and why? 2, 4, 6, 8, 10, 11, 10, 10, 9, 14, 9, 10, 14, 14, 15, 16, 18 .... Hint: Hint 2:
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1answer
165 views

Which number is the odd-one-out in the above set?

In this number set there is something common between the numbers that makes them up into a pattern. Which one of these numbers break up the hidden pattern?
4
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1answer
192 views

Find pattern for new equation in number sequence

I saw this puzzle on this address. $3+5+7=152181$ $4+5+6=202461$ $3+4+7=122172$ $9+4+5=364518$ $8+6+8=?$ I know that first $4$ digits are $4864$. How could I find last $2$ ...
3
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0answers
158 views

Trying to figure a math puzzle/equation for a surprise trip using the date [closed]

I planning a surprise trip for my husband's 40th. He is a math geek. I am not. My plan is to tell him in a series of riddles/puzzles that he needs to figure out. We are going to LA to see his ...
4
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1answer
163 views

What are the missing numbers in this group of 7?

The following groups of 7 number in each line, are related in each line in a unique way: ...
2
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4answers
870 views

What is the question mark?

My friend gave me this sequence of numbers: 3=11 6=12 11=13 14=14 361114=A A=? Which number can replace the question mark?
4
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1answer
189 views

Enigma between Colleagues (Part2)

Let's give a second try with something more creative. Here is the sequence : 161 = B 198 = W 173 = ∅ 246 = B 215 = W 227 = B 192 = ∅ 184 = ? Don't hesitate to ...
10
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1answer
219 views

Enigma between Colleagues (Part1)

With a colleague, we tried to create enigma to challenge ourselves. Here is our first try, hope you will enjoy it. 4 = 2 12 = 3 19 = 3 24 = 4 47 = 5 50 = ? Hint 1 : Don'...
6
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1answer
161 views

Find the next number in the following sequence [Mind bender]

I came across this sequence in the paper: 109080, 12123, 1350, 153, ? What could be the next number? And what is the pattern that connects these numbers? Dividing a term by the next term leads to a ...
14
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1answer
1k views

Name These Animals

Can you definitively name these animals? More importantly, can you find and extend the hidden number sequence? With elegant, long ears, precious huge animals need to be protected. Winter predator ...
3
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1answer
192 views

Next term of the series

Find the next term of the series $79,95,25,39,99,$____ $(1)$ $117$ $(2)$ $81$ $(3)$ $243$ Source: IBPS PO mains exam in India
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2answers
937 views

Somebody hacked my clock

Harvey the hacker hacked my clock. At first, the results made no sense, but I eventually figured out his logic. ...
4
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1answer
156 views

Saturdays' Sequences

0.469281 0.267974 0.333333 0.333333 0.666667 0.499346 0.333333 2 2 1 1 2 2 1 3 2 F 0 0 0 0 U P F O X F E 0 0 1 1 2 1 1 Here are 5 intertwined sequences. I will add one sequence each saturday ...
3
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3answers
1k views

Find the wrong number in the given series: 6, 12, 21, 36, 56, 81?

The following problem was given to me by one of my friend: Find the wrong number in the given series: $$6,\, 12,\, 21,\, 36,\, 56,\, 81 $$ ? A) $21\,$ B) $12\,$ C) $36\,$ D) $56$ and ...
2
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0answers
119 views

What should be the missing number? [closed]

What would be the missing number?
2
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2answers
177 views

How to find number of times sequence element $1$ is approached and from where?

Consider a sequence $1,-1,-1,-1,-1,-1,...,-1$. Start at the first element and move down the sequence according to the following rules: 1) If you jump from a $-1$ to another $-1$, turn the latter into ...
8
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2answers
746 views

IX-NAY on the IX-SAY

Will this sequence ever have a 6 in it? 9, 1, 1, 1, 10, 3, 1, 1, 10, 5, 1, 1, 10, 1, 5, 2, 1, 1, 10, 1, 1, 1, 5, 4, 1, 1, 10, 3, 1, 1, 5, 1, 1, 1, 5, 2, 1, 1, 10, 5, 1, 1, 5, 3, 1, 1, 5, 4, 1, ... ...
2
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1answer
136 views

What is the missing item in this symbolic or numerical series/set?

Determine the missing item. I I I I V V V V XV XV XV XV XVI XVI XVIII XVIII XVIII XVIII XIX XIX XX XX XX XX ?
2
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3answers
152 views

IQ test sample patterns. Can anyone find the missing number? [closed]

I am fully hopeful that you can crack this puzzle. You need to answer with an explanation.
6
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1answer
121 views

Number sequence labyrinth

Can you find the way out of the labyrinth ? Rules: Each color you pass is a number (or character) sequence, you have to note the solution of this sequence. When you're out of the maze, your ...
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1answer
110 views

Fibonacci again..Distinct Digits..Detail all your Deductive Steps [closed]

$ABB$ $CDE$ $GFB$ $DPGB$ $QPFR$ $RDFD$
0
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1answer
70 views

The missing number in a sequence [duplicate]

What is the missing number represented as "?" 10,11,12,13,14,15,16,17,20,22,24, ?,100,121,10000
2
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1answer
121 views

Deduce Distinct Digits of the Given Fibonacci Sequence- Detail all Steps

$DEPUS$ $SRST$ $UDQD$ $CTQU$ $DTPR$ $PQR$ $SDE$ $VRR$ $CVV$ $DUU$ $QP$ $TT$
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1answer
67 views

Puzzle on a blackboard [closed]

What is the missing number in the picture above?(question is from some puzzle game) I tried some approaches, but haven't found any meaningful rule..thanks in advance!
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1answer
85 views

Strange? Primes and Palindromes have no business being in this Place?

$1$ $1$,$2$ Good easy start $1$,$2$,$4$ As expected $1$,$2$,$4$,$8$ I know it is going to be easy $1$,$2$,$4$,$8$,$16$ why is he giving this? I got it! $1$,$2$,$4$,$8$,$16$,Prime ...oops!.....
5
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2answers
113 views

Mathematical Series

I was just going through some series and came across one which I wasn’t able to solve. The first 8 numbers of the series are: 1,3,7,19,53,153,449,1331,... Can anyone tell me a mathematical formula ...
3
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1answer
220 views

The Mathematical Puzzle That Is So Mathematical It Will Blow Mathematical Minds Of Mathematics Away!

Here is a short sequence that I made when brainstorming puzzles: 19 101 920 20009 701 104 403 311 3000000000000000003 ... You need to figure the ...
4
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1answer
120 views

Deduce the Missing Terms in the Sequence

$NINE$ + $5$ $EIGHT$ + $3$ $SEVEN$ + $2$ $???$ + $?$ $FIVE$ + $1$ $????$ + $?$ $?????$ -$?$ $???$ - $?$
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1answer
72 views

Give these Digits their own Place..Place them Right

In their own Circle. Such that the arrows point to successive numbers . Start with 1 and end with 9. There might be more arrows than necessary. Find the solution with least number of arrows ignored.
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1answer
66 views

Complete my number sequence

Can you complete following number sequence ? 389919, 1308, 93, ?, ? Hint:
5
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2answers
721 views

Number sequence: 202500, 5184, 32400, 12960,?

Can you solve my first selfmade number sequence ? 202500, 5184, 32400, 12960, ? Hint: Hint: Hint
3
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1answer
93 views

Another cool number-sequence puzzle

The task is to find x. (Source https://free.ultimaiq.net/nse.htm) 123456, x , 93332736, 3359978496
5
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1answer
488 views

NSE Numerical IQ Test no.12: 759802, 358829, 847123,?

This is a question from the NSE Numerical IQ Test by Theodosis Prousalis and Ivan Ivec: 12) 759802, 358829, 847123, ? After 2 hours, I can't figure out the answer. I've only made these ...
1
vote
1answer
218 views

What is the missing number in set B?

A {6, 2, 2, 2, 16, 2} B {37, 37, 3, 3, 3, ?} The numbers in set A relate to one another through a numerical or abstract pattern. Set B has a similar or a somewhat contrasting pattern .The task in ...
4
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1answer
157 views

Prime Knight travels through Prime Country

Prime Knight travels through Prime Country... Ride along and Document Details of his Journey As this Prime Knight (only chess move allowed) journeys through Prime land, he makes a pit stop at every ...