Question

stiind ca suma a sase nr consecutive este75, aflati nr

Answer 1

a+a+1+a+2+a+3+a+4+a+5=75
6a+15=75
6a=75-15=60
a=60:6=10
b=10+1=11
c=10+2=12
d=10+3=13
e=10+4=14
f=10+5=15
10+11+12+13+14+15=75(verificare)

Answer 2

a+a+1+a+2+a+3+a+4+a+5=75
6a+15=75
6a=75-16
6a=60
a=60:6
      a=10
10+1=11
10+2=12
10+3=13
10+4=14
10+5=15
V: 10+11+12+13+14+15=75