Salary in enterprise

The average salary in the company is 27 000 CZK, 30% of workers have the lowest average income of 19 thousand CZK. There were an increase in the salary in this group by 2%. How much % increased the average salary across the company?

Result

p =  0.422 %

Solution:

a=19000
0.3*a + 0.7*b = 27000
c = 0.3*a*1.02 + 0.7*b
p = 100*(c/27000-1)

a = 19000
0.3a+0.7b = 27000
0.306a+0.7b-c = 0
100c-27000p = 2700000

a = 19000
b = 2130007 ≈ 30428.571429
c = 27114
p = 1945 ≈ 0.422222

Calculated by our linear equations calculator.

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