my answer to today's teaser 2598

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ahmet cetinbudaklar

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Jul 8, 2012, 8:05:32 AM7/8/12
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Dear Testmaster:

In today's teaser I listed all the possible squares and prime numbers as follows:

Squares: 121 , 144 , 225 , 256 , 361 , 441 and 625

Prime numbers: 113 , 131 , 151 , 163 , 211 , 223 , 233 , 241 , 251 , 263 , 311 , 313 , 331 , 353 , 421 , 431 , 433 , 443 b, 461 , 463 , 521 , 523 , 541 , 563 , 613 , 631 , 641 , 643 , 653 and 661.

The number I see at the front and the number seen by the observer from the front add up to 7 for each dice.

The top number I read is from my right to my left and the reverse is true for the observer.Hence the only square number with its reverse being a prime 361 and if I try this as the top face of  three dice , then by trial and error we can get:

152  (reverse reading 251-a prime)
361 (read left to right a square and reverse reading is a pirme)
625 (read left to right is a prime)

Hence we have 2 prime numbers and 2 squares respectively giving us the answer to this etaser as 361 and 625.

Nice and   neat problem.

With my best regards

ahmet cetinbudaklar
  


Cactus

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Jul 8, 2012, 8:24:33 AM7/8/12
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Welcome to this group Ahmet,

 You may wish to know that this discussion group is now inactive because most of the discussion of Sunday Times Teasers now occurs at this web site:


You may hence wish to contribute there.

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