Question

По норме рабочий должен изготовить 72 детали,а он изготовил 90 деталей.На сколько процентов рабочий выполнил норму и на сколько процентов он перевыполнил норму?

Answer 1

100% (норма) - это 72 детали
х% - это 90 деталей

х=90*100:72=9000:72=125% - он выполнил 
125-100=25% он перевыполнил норму

Answer 2

72д.-100%; 90д.- х%; Составим и решим пропорцию: 72/90=100/х; 72х=9000; Х=9000:72; Х=125; 125%- на столько % рабочий выполнил норму. 125%-100%=25% - на столько % рабочий перевыполнил норму.

Answer 3

Calculation of Percentage Completion and Excess

To calculate the percentage by which the worker completed the norm and the percentage by which they exceeded the norm, we can use the following formulas:

Percentage Completion = (Number of parts produced / Norm) * 100

Percentage Excess = ((Number of parts produced - Norm) / Norm) * 100

In this case, the worker produced 90 parts, while the norm was 72 parts.

Calculation

Using the formulas mentioned above, we can calculate the percentage completion and excess as follows:

Percentage Completion = (90 / 72) * 100 = 125%

Percentage Excess = ((90 - 72) / 72) * 100 = 25%

Therefore, the worker completed the norm by 125% and exceeded the norm by 25%.

Please note that the calculations are based on the given information and assumptions.