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Ten Times Two is 0218

10 × 2 = 0218
20 × 2 = 1421
30 × 2 = 1632
40 × 2 = ?

2840.

This makes the first column the start of the Fibonacci series: 0, 1, 1, 2.
The second column is the even numbers: 2, 4, 6, 8
The third column is counting up by ones: 1, 2, 3, 4
And the last column is the answer in the first row in reverse: 8, 1, 2, 0.

Don’t ask what 50 × 2 equals. I have no idea. :)

Thanks to Jim for helping with the solution.


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9 Comments on "Ten Times Two is 0218"


cody says
December 17, 2013 @ 15:06

is it 2843


Dan says
December 17, 2013 @ 15:48

It could be. Could you explain how you got it?


Nirvan says
December 18, 2013 @ 06:25

1843

the difference should be 1, difference should be 2, difference should be 1, Last digit

10 – 2= 8
20-2=18 (Take 1st digit, 1)
30-2=28 (Take 1st digit , 2)
40-20=38 (Take 1st digit , 3))


cody says
December 18, 2013 @ 09:52

0218
1421
1632
2843
go down it is a paterin


cody says
December 18, 2013 @ 15:02

how is it 2840?


Dan says
December 18, 2013 @ 16:13

Check out the explanation in the answer – click on the Show the answer link below the riddle.


ANDY BEST says
December 31, 2013 @ 09:47

Excuse me pls s!r…!I do accept that of the first,second,and this column..but that of the 4th/last column I can’t comprehend how the anwer is 0.. But for me, I’ll go for 2843


Dan says
December 31, 2013 @ 10:56

The 0 is the first number on the first line – 0218. The numbers down the fourth column are the reverse of this number, 8120. Having a 3 there doesn’t make a pattern.


Joe says
July 22, 2016 @ 13:56

40 x 2 = 80. The first 3 lines are incorrect.


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