Question

stiind ca suma a sase nr consecutive este 75 aflati nr

Answer 1

a
a+1
a+2
a+3
a+4
a+5
======(+)
6a+15=75
6a=75-15
6a=60
a=10

nr sunt 10 11 12 13 14 15

Answer 2

a+b+c+d+e+f=75;
⇒a+a+1+a+2+a+3+a+4+a+5=75
⇒6a+15=75
⇒6a=60⇒a=10;
⇒b=11;
⇒c=12;
⇒d=13;
⇒e=14;
⇒f=15;