From January to April this year, the industrial output value of Huachuan Machinery Factory is 250000 yuan, 300000 yuan, 400000 yuan and 500000 yuan respectively. How much is the increase of the maximum output value over the minimum output value

From January to April this year, the industrial output value of Huachuan Machinery Factory is 250000 yuan, 300000 yuan, 400000 yuan and 500000 yuan respectively. How much is the increase of the maximum output value over the minimum output value


（50-25）÷25=1=100%
A: 100% growth
Adopt



If the output value of a factory in the third year is 21% higher than that in the first year, the average annual increase is ()


﹙1＋x﹚²＝1·21
x=0.1=10％
An average increase of 10% per year over the previous year

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