Question

media aritmetica a cinci numere naturale consecutive este 5. determinati numerele.

Answer 1

ma= (a+b+c+d+e)/5

5=(a+b+c+d+e)/5

a+b+c+d+e= 5•5

a+b+c+d+e= 25 (suma numerelor)

a= x

b= x+1

c= x+2

d= x+3

e= x+4

x+x+1+x+2+x+3+x+4= 25

5x+10= 25

5x=25-10

5x= 15

x= 15/5

x= 3

a= 3

b= 4

c= 5

d= 6

e= 7

Answer 2

Ma = 5 => S = 5 x 5 = 25

a + (a + 1) + (a + 2) + (a + 3) + (a + 4) = 25

5a = 25 - 10

5a = 15

a = 3

b = 4

c = 5

d = 6

e = 7