Dollars

Mama split 760 dollars Jane, Dane and Eva as follows: Jane got three times more than Dane and Dane and got 40 more than Eva. How much does get each of them?

Correct result:

j =  480
d =  160
e =  120

Solution:

j+d+e = 760
j = 3d
d = 40+e

j+d+e = 760
j = 3•d
d = 40+e

d+e+j = 760
3d-j = 0
d-e = 40

d = 160
e = 120
j = 480

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