Question

sums a 3 nr naturale consecutive este 48. determinati nr

Answer 1

n+n+1+n+2 = 48 ; 3n = 48-3 = 45 ; n = 45:3 = 15 ; numerele vor fi

15 ; 16 ; 17 ; verificare 15+16+17 = 48

Answer 2

Fie a, b = a+1 si c = a+2 numerele cautate

a + b + c = 48

a + a+1 + a+2 = 48

3a = 45

a = 15

b = 16

c = 17