Question

a+b+c=45
a, b, c=nr impare consecutive
a, b, c=?
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Answer 1

Răspuns:

a |..........|

b |..........|..|2

c |..........|...|2..|2

egalam seg:

45-2-2-2=39

aflam primul numar

39:3=13

aflam al doilea numar

13+2=15

aflam al treilea numar

15+2=17

v:13+15+17=45

Answer 2

Răspuns:

Explicație pas cu pas:

a+b+c=45

a,b,c impare consecutive

b=a+2

c=b+2=a+2+2=a+4

a+a+2+a+4=45

3a=45-6

3a=39

a=13

b=13+2=15

c=13+4=17