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P _ L _ S Clue
IT IS NOT POSSIBLE TO GUESS ONLY THREE FRUITS CORRECTLY, THE FOURTH FRUIT WILL BE CORRECT TOO! SO NOBODY HAS GUESSED THREE FRUITS CORRECTLY AND SO 10 (123 - 43 - 39 - 31 = 10) PEOPLE HAVE GUESSED FOUR FRUITS CORRECTLY HIS YOUNGER BROTHER WAS 6. LET HIS AGE BE X, DIMPLE'S AGE BE Y, AND HIS FATHER'S AGE BE Z. THEN Z=3Y, Z=X2, Y=2X. SO 6X=X2 AND X=6 104 POLES. THE FOUR CORNER POLES ARE COMMON TO BOTH SIDES, SO WE HAVE: 25 POLES X 4 SIDES + 4 CORNER POLES = 104 POLES THE MATHEMATICIAN MADE A SMALL FENCE AROUND HIMSELF AND DECLARED HIMSELF TO BE ON THE OUTSIDE