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Sagot :

Bonsoir,

60/2 = 30

30/2 = 15

15/3 =5

=> 2*2 *3 *5

84/2 = 42

42/2 = 21

21/3 = 7

=> 2*2*3*7

96/2 = 48

48/2 = 24

24/2 = 12

12/2 = 6

6/2 = 3

=> 2*2*2*2*2 *3

en commun:

2*2*3  =12

Donc 1 piquet tous les 12m

60+84+96 = 240

240/12 = 20

Il doit prévoir 20 piquets

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