Worker's salary was increased twice by the same percentage. What was the salary increase percentage each time, if before the salary was 800 and after the second salary increase it was 1250?

Answer 1

800x^2 = 1250

80x^2 = 125

x^2 = 125/80 = 25/16

x = 5/4 = 1.25 = 125%

800 times 1.25 = 1000

1000 times 1.25 = 1250

It's a 25% increase each time

800+25% of 800 = 800+200 = 1000

1000 +25% of 1000 = 1000+250 = 1250