Question

aflati 5 nr consecutive stiind ca suma lor este 95

Answer 1

a+b+c+d+e=95
a=a
b=a+1
c=a+2
d=a+3
e=a+4
95-10=85 (5xa)
85:5=17 (a)
17+1=18 (b)
17+2=19 (c)
17+3=20 (d)
17+4=21 (e)
17+18+19+20+21=95

Answer 2

a + ( a + 1 ) + ( a + 2) + ( a + 3 ) + ( a + 4) = 95

5 × a + 10 = 95

5 × a = 95 - 10

a = 85 : 5

a = 17 → primul nr.

17 + 1 = 18 → al doilea nr.

18 + 1 = 19 → al treilea nr.

19 + 1 = 20 → al patrulea nr.

20 + 1 = 21 → al treilea nr.

Verificare: 17 + 18 + 19 + 20 + 21 = 95 → suma celor cinci numere consecutive