Răspuns :

Iakabcristina2id

Răspuns:

(a+b+c+d+e)/5 = 162

a+b+c+d+e=810

a/3 = b/4 = c/5 = k

a=3k

b=4k

c=5k

c/3 = d/4 = e/5 = k'

c=3k'=5k =>k'=5k/3

d=4k'=20k/3

e=5k'=25k/3

3k+4k+5k+ 20k/3 + 25k/3 = 810

9k+12k+15k+20k+25k=810•3

81k=810•3

k=30

=>a=90, b=120, c=150, d=200, e=250

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