Boys and money

270 USD boys divided so that Peter got three times more than Paul and Ivan has 120 USD more than than Paul. How much each received?

Correct answer:

a =  90
b =  30
c =  150

Step-by-step explanation:

a+b+c=270
a=3b
c= 120+b

a+b+c=270
a=3•b
c= 120+b

a+b+c = 270
a-3b = 0
b-c = -120

a = 90
b = 30
c = 150

Our linear equations calculator calculates it.

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