Media aritmetica

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miruna.lazar
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Media aritmetica

Post by miruna.lazar »

Media aritmetica a doua numere este 20 . Stiind ca unul este triplul celuilalt , sa se afle numerele.
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Amaranth
Thales
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Post by Amaranth »

(a + b) : 2= 20
a+ b= 40
a= 3b

Inlocuim a cu 3b

3b + b= 40
4b= 40 => b= 10
10 * 3= 30= a

Sau invers daca b= 3a
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