Question

MEDIA ARITMETICA 3.0​

Answer 1

(a+b+c+d+e) : 5 = 24 | x5

=> a+b+c+d+e = 120

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(a+b) :2 = 15 | x2

=> a+b = 30

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=> c+d+e = 120-30

=> c+d+e = 90

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(c+d+e) : 3 = 30

90 : 3 = 30

Answer 2

a+b+c+d+e/5= 24 |•5

a+b+c+d+e=120

a+b/2=15|•2

a+b=30

c+d+e=120-30=90

media aritmetica= c+d+e= 90/3=30