Two numbers

The sum of two numbers is 1. Identify this two numbers if you know that the half of first is equal to the third of second number.

Correct result:

a =  0.4
b =  0.6

Solution:

a+b=1
a/2 = b/3

a+b = 1
3a-2b = 0

a = 2/5 = 0.4
b = 3/5 = 0.6

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