Summerjob

Three students participated in the summerjob. Altogether they earn 1780, -. Peter got a third less than John and Paul got 100,- more than Peter. How much got every one of them?

Result

a =  480
b =  720
c =  580

Solution:


a+b+c=1780
a=b-b/3
c=100+a

a+b+c = 1780
3a-2b = 0
a-c = -100

a = 480
b = 720
c = 580

Calculated by our linear equations calculator.







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To solve this example are needed these knowledge from mathematics:

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