Question

aflati trei nr nat consecutive daca suma lor este egala cu: a)60 b)108

Answer 1

A)FIE X,X+1,X+2 NUMERELE NECUNOSCUTE
X+X+1+X+2=60
3X+3=60
3X=57
X=19
RASPUNS:19,20,21
B)3X=105
X=35
RASPUNS:35,36,37

Answer 2

N+N+1+N+2=60

3N+3=60

3N=60-3

3N=57

N=57:3

N=19