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Number Puzzle #20

March 19, 2013 by puzzler 2 Comments

 

number puzzle 20

number puzzle 20

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Answer is 15

Explanation: Numbers in outer circle are multiplication of the corresponding number in inner circle and 3.

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Number Puzzle #19

March 13, 2013 by puzzler 5 Comments

Answer if you can

? , 13, 49 9, 17, 69 13,11, 59

? , 13, 49
9, 17, 69
13,11, 59

Check your answer:-

Tried enough already?
See AnswerHide Answer

Answer courtesy Sandy, in disqus comments

Logic: For every row First column*2 + Second Column*3 = Third Column

for second row 9*2 + 17*3 = 69

for third row 13*2 + 11*3 = 59

for first row, lets say first column value is x, thus

x*2 + 13*3 = 49

2x = 49 – 39 = 10

x = 5

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Number Puzzle #18

March 9, 2013 by puzzler 1 Comment

 

14, 10, 8 9, 16, 7 10, ?, 9

14, 10, 8
9, 16, 7
10, ?, 9

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Answer is 13

How?
Actually the sum of the first two rows is 32
so the missing number should be 32-10-9=13.

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Number Puzzle #17

March 1, 2013 by puzzler 1 Comment

 

Find the missing section

Find the missing section

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Answer is C

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Number Puzzle #16

February 27, 2013 by puzzler Leave a Comment

 

IF 11 = 20 12 = 31 13 = 42 14 = 53 Then 18 = ?

IF 11 = 20
12 = 31
13 = 42
14 = 53
Then 18 = ?

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Answer with Explanation

Answer is 97.
How?
11 => (1+1)(1-1) => 20
12 => (2+1)(2-1) => 31
13 => (3+1)(3-1) => 42
14 => (4+1)(4-1) => 53
similarly
18 => (8+1)(8-1) => 97

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Number Puzzle #15

January 21, 2013 by puzzler 6 Comments

 

IF 5 + 3 = 28 9 + 1 = 810 8 + 6 = 214 5 + 4 = 19 then 7 + 3 = ???

IF 5 + 3 = 28
9 + 1 = 810
8 + 6 = 214
5 + 4 = 19
then 7 + 3 = ???

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Answer with Explanation

Answer is 410.
How?
5 + 3 = (5-3)(5+3) = 28
9 + 1 = (9-1)(9+1) = 810
8 + 6 = (8-6)(8+6) = 214
similarly
7 + 3 = (7-3)(7+3) = 410

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Number Puzzle #14

January 20, 2013 by puzzler 2 Comments

 

IF  2 + 3 = 10 8 + 4 = 96 7 + 2 = 63 6 + 5 = 66 then 9 + 3 = ?

IF
2 + 3 = 10
8 + 4 = 96
7 + 2 = 63
6 + 5 = 66
then 9 + 3 = ?

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Answer with Explanation

Answer is 108.
How?
2 + 3 = 2 *(2+3) = 10
8 + 4 = 8*(8+4) = 96
7 + 2 = 7*(7+2) = 63
6 + 5 = 6*(6+5) = 66
9 + 3 = 9*(9+3) = 108

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Number Puzzle #13

January 20, 2013 by puzzler Leave a Comment

 

IF  1 = 3 2 = 3 3 = 5 4 = 4 5 = 4 then 6 = ?

IF
1 = 3
2 = 3
3 = 5
4 = 4
5 = 4
then 6 = ?

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Answer with Explanation

Answer is 3.
How?
It simple, but you have to think more then the math 🙂
1 = one = 3 letters
2 = two = 3 letters
3 = three = 5 letters
4 = four = 4 letters
5 = five = 4 letters
6 = six = 3 letters

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Number Puzzle #12

January 20, 2013 by puzzler 1 Comment

 

64 5 40 81 7 65 16 4 ?

64 5 40
81 7 65
16 4 ?

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Answer with Explanation

Answer is 16.
How?
Its a little trickier one then others.
sqr root(64) * 5 = 40
sqr root(81) * 7 = 63
sqr root(16) * 4 = ? = 16.

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Number Puzzle #11

January 20, 2013 by puzzler Leave a Comment

 

 6 3 2 -3 ? 5 ----------  2 6 7

6 3 2
-3 ? 5
———-
2 6 7

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Answer with Explanation

Answer is 6.
How?
It is the simple subtraction as we used to do in our early maths classes in our childhood, so just reminds us of those days of taking carry and subtracting.

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