Topic started by Pavalamani Pragasam (@ 61.1.207.106) on Thu Apr 17 05:47:50 .

All times in EST +10:30 for IST.

Here is an interesting mathematical puzzle I came across recently:

A king had 24 horses kept in a shed in the shape of a square divided into 9 small squares- 3 in a row. The central square was blocked & the horses were kept in the surrounding 8 squares. Like this:

3 3 3

3 * 3

3 3 3

A servant was appointed to look after the horses. Guards came round regularly to check the number of horses. Their habit was to stand in front of each corner & see if there were 9 horses in total in the 3 squares of the row in front of them.

One day a friend of the servant approached him & requested him to accommodate his 8 horses for a few days. The servant refused describing how the guards came for checking the king’s horses every day & night. After hearing the counting method of the king’s guards the friend promised to put in his horses without the guards finding it out- ie in such a way that the rows contained 9 horses from any corner. The servant consented. How were the horses arranged in the 8 squares without the guards finding out?

There is more:

After a few days the friend came back & took away his horses. Alas! 4 of the king’s horses were found missing by the servant when he counted them. But there were 9 horses in each row to satisfy the guards. How did the clever thief friend arrange the remaining horses?

Let me have more such puzzles.

- From: TPFKAA (@ 203.106.140.141)
on: Thu Apr 17 06:02:11 EDT 2003

24 original horses and 8 additional horses = 32 horses.

Is this the answer?

1 7 1

7 * 7

1 7 1

- From: TPFKAA (@ 203.106.140.141)
on: Thu Apr 17 06:04:37 EDT 2003

24 original horses minus 4 horses = 20 horses.

Using same principle:

4 1 4

1 * 1

4 1 4

- From: TPFKAA (@ 203.106.140.141)
on: Thu Apr 17 06:07:39 EDT 2003

Here is one:

By drawing one line, make this equation correct. Remember, only one line is allowed:

5 + 5 + 5 = 550

- From: Pavalamani Pragasam (@ dialpool-210-214-8-173.maa.sify.net)
on: Thu Apr 17 07:28:24 EDT 2003

Eureka!

545+5=550

Make the 1st plus sign 4 by adding one line!

- From: TamilNattan (@ cvg-65-27-251-73.cinci.rr.com)
on: Thu Apr 17 08:19:00 EDT 2003

You can cross the '=' with a slanted line to make it 'not equal to'.

5 + 5 + 5 =/ 555 (that '/' needs to be on the '=' sign).

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