Question

Determinati numerele a si b , stiind ca a=5b si media
lor aritmetica este egala cu 186

Answer 1

a=5b
(a+b)/2=186=>a+b=372
5b+b=372
6b=372=>b=62
a=310

Answer 2

(a+b):2=186
a=5b
a=?
b=?

a+b=186*2
a+b=372
a=5b
5b+b=372
6b=372
b=372:6
b=62
a=5*62
a=310