Question

media aritmetica a cinci nere consecutive este 35. Aflati numerele

Answer 1

(a+a+1+a+2+a+3+a+4):5=35
5a+10=175
5a=165
a=35
Nr sunt 35 36 37 38 39

Answer 2

[a+(a+1)+(a+2)+(a+3)+(a+4)]:5=35
(5a+10):5=35
5a+10=35x5
5a+10=175
5a=175-10
5a=165
a=165:5
a=33
a+1=33+1=34
a+2=33+2=35
a+3=33+3=36
a+4=33+4=37

De nr.sunt: 33,34,35,36,37

Verificare:

Ma=(33+34+35+36+37):5=175:5=35