Problema Solution
when 80% of a number is added to the number, the result is 270.
Answer provided by our tutors
letl 'x' be the number
80% of x + x = 270
0.8*x + x = 270
1.8*x = 270
x = 270/1.8
x = 94.44
x = 150
the number is 150.
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