Three workers

Three workers got paid for work. First earn € 50, the second € 100 and third € 60. For further work should receive together € 735. How do you divide that amount in order to be distributed in the same proportion as the first job?

Correct result:

a =  175 Eur
b =  350 Eur
c =  210 Eur

Solution:

$$\begin{gathered} s=735\mathrm{/}(50+100+60)={\displaystyle \frac{7}{2}}=3{\displaystyle \frac{1}{2}}=3.5 \\ a=50\cdot s=50\cdot 3.5=175\text{ Eur} \end{gathered}$$

$b=100\cdot s=100\cdot 3.5=350\text{ Eur}$

$c=60\cdot s=60\cdot 3.5=210\text{ Eur}$

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