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Given the set {1,2,3,5,8,13,21,34}, which integers between 30 and 50 cannot be written as a number from the set on its own, or as the sum of either two or three numbers from the given set

 Nov 2, 2019
 #1
avatar+104933 
+2

31  =  21 + 8 + 2                             41  =  34 + 5 + 2

32  =  21 + 8 + 3                             42  =  34 + 8

33  =  cannot be written                  43  =  34 + 8 + 1

34  = 34                                          44  =  34 + 8 + 2

35  = 34 + 1                                    45  =  34 + 8 + 3

36  =  34 + 2                                   46  =  cannot be written

37  = 34 + 3                                    47 =  34 + 13

38  = 34 + 3 + 1                              48  =  34 + 13 + 1

39  = 34 + 5                                    49  =  34 + 13 + 2

40  = 34 + 5 + 1

 

 

 

cool cool cool

 Nov 2, 2019
 #2
avatar+2391 
+1

Nice, hard work!

CalculatorUser  Nov 2, 2019

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