Răspuns :
a+a+1+a+2= 3•55
a+a+1+a+2= 165
3a+3=165
3a= 165-3
3a= 162
a= 162/3
a= 54
a+1= 54+1= 55
a+2= 54+2= 56
Deci cele trei numere sunt 54,55,56, care adunate dau 165.
a+a+1+a+2= 165
3a+3=165
3a= 165-3
3a= 162
a= 162/3
a= 54
a+1= 54+1= 55
a+2= 54+2= 56
Deci cele trei numere sunt 54,55,56, care adunate dau 165.
a + ( a + 1 ) + ( a + 2 ) = 5 x 33
3 x a + 3 = 165
3 x a = 165 - 3
a = 162 : 3