This is an interesting one.

Given a special four-digit number, 1978,

we can get the centre two digit (97) by adding

the left-most 2 digits (19) and the right-most 2 digits (78).

Another of this special number is 1538.

Can you get 2 more of this special numbers?

Brain-raking isn't it?

To be frank, it is not that difficult.

Hint: Algebra can solve this maths thinker.

:-)

## Saturday, 7 February 2009

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## 2 comments:

Hi,

These are the numbers that match the requirement:

[1208]

[1318]

[1428]

[1538]

[1648]

[1758]

[1868]

[1978]

[2307]

[2417]

[2527]

[2637]

[2747]

[2857]

[2967]

[3406]

[3516]

[3626]

[3736]

[3846]

[3956]

[4505]

[4615]

[4725]

[4835]

[4945]

[5604]

[5714]

[5824]

[5934]

[6703]

[6813]

[6923]

[7802]

[7912]

[8901]

I love your questions...

Hi Suresh,

I did not expect such a long list of numbers.

However, I amazed at your answers. Well done! Yes, the answers are definitely correct. And as mentioned I do not think it is difficult.

What I appreciate is the effort in trying. Maths is a wonderful subject for anyone wishing to put in effort.

Cheers!

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