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Keep Moving

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Number-Puzzle-#128,-Keep-moving
What comes next? Explain.

1, 3, 6, 10, 3, 9, 4, 12, 9, 7, ?, ?

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First Number
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Next Number
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Answered by Asokan

The limiting number in this series is 12
whenever the number becomes more than 12, 12 is deducted from this
1
1 + (2) = 3
3 + (3) = 6
6 + (4) = 10
10 + (5) = 15 – 12 = 3
3 + (6) = 9
9 + (7) = 16 – 12 = 4
4 + (8) = 12
12 + (9) = 21 – 12 = 9
9 + (10) =19 – 12 = 7
7 + (11) =18 – 12 = 6
6 + (12) =18 – 12 = 6

6,15,28,45,??

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Number Puzzle #127

Number-puzzle-127---6,15,28,45,...
What will be the next number in the series 6,15,28,45,???

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6,15,28,45
If we see, it difference is forming a GP.
Difference
9,13,17
Next difference should be 21
thus next number in original sequence should be 45+21 = 66

10,11,19,28,??,117

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10,11,19,28,??,117

Find the missing number in the series
10,11,19,28,??,117

This puzzle is courtesy one of our readers, shared via WhatsApp

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pattern goes like this add 1 square, 2 cube, 3 square, 4 cube, 5 square….so on

First number is 10, then next number is 10 + 1^2 =>11
next number 11 + 2^3 => 19
next number 19 + 3^2 => 28
next number 28 + 4^3 => 92
next number 92 + 5^2 => 117

Credit to the answer goes to Rahul

Number Puzzle #123

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Guess the number in middle of the triangle

number puzzle 123

 

7 5 3 => 26

2 1 3 => 5

8 6 2 => 44

4 9 5 => ?

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let 3 numbers be a , b , c s.t. c>b>a
then here (b)x(c)-(a)^2 = output
In short: Multiplication of 2 highest numbers and then subtract by square of the smaller number.
so 7 5 3 ; 7*5-9=26
2*3-1 =5
8*6-4=44
9*5-16=29

Thus 29 is the answer.

answered by Anshul Singh

Number Puzzle #122

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Which number should replace the question mark ?

Number Puzzle #122

Number Puzzle #122

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2+1=3
3+1=4
7+3=10
13+3=16
………..
0+1=1
2+1=3
2+3=5
10+3=13

answer by sakshi

If 3/20 = 1/10+1/20

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Number Puzzle #121

Number-puzzle-121

Number Puzzle #121

If 3/20=1/10+1/20

3/5=1/5+1/5+1/5

Then, 7/10=????

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Ans.7/10=1/5+1/2
How?
Trick is to make dividend as 1 in minimum possible additions.

so we should try to write 7/10 as 1/x + 1/y + 1/z …..

we can easily see that x = 5, y = 2 will be enough.

If 3 = 5, 5 = 3, 7 = 4

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Number Puzzle #120

Number-Puzzle-120

IF 3 =5
5= 3
7 = 4
8 = 6
10 = 7
11 = 8
Then 12 = ?

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Answer is 8, (answer by Omi Guy on facebook)
Here left is month number and right side represents the number of characters in the month name.
thus number of character’s in 12th month, i.e. in december are 8

286,96 ,54,20,__?

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Number Puzzle #119

NTSE MAT question

Find missing Number in the series.
286,96 ,54,20,__?

Number-puzzle-119

Number-puzzle-119

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Correct answer is 0. (answered by Amit Mukherji on facebook)
2x8x6=96, 9×6= 54, 4×5= 20, 2×0 = 0

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