Question

На изготовление 50 деталей мастер затрачивает 1ч 40мин, а его ученик работает в 2 раза медленнее.За сколько минут ученик делает одну деталь?

Answer 1

1)1 ч 40 мин= 100 мин
2)100 мин*2=200 мин-время производства 50 деталей мальчика
3)200 мин:50 дет=4 мин-мальчик производит 1 деталь за 4 минуты

Answer 2

Calculating the Time Taken by the Apprentice to Make One Part

To calculate the time taken by the apprentice to make one part, we can use the following steps:

1. Calculate the Total Time Taken by the Master to Make 50 Parts: - The master takes 1 hour and 40 minutes to make 50 parts.

2. Calculate the Relative Speed of the Apprentice: - The apprentice works at a speed that is 2 times slower than the master.

3. Calculate the Time Taken by the Apprentice to Make 1 Part: - We can use the relative speed to calculate the time taken by the apprentice to make one part.

Calculation

1. Total Time Taken by the Master: - The master takes 1 hour and 40 minutes to make 50 parts. - This can be converted to minutes: 1 hour = 60 minutes, so 1 hour 40 minutes = 60 + 40 = 100 minutes.

2. Relative Speed of the Apprentice: - The apprentice works at a speed that is 2 times slower than the master. - This means the apprentice's speed is 1/2 of the master's speed.

3. Time Taken by the Apprentice to Make 1 Part: - We can calculate the time taken by the apprentice to make one part using the relative speed.

- Let's denote the time taken by the apprentice to make one part as x minutes. - Since the apprentice works at 1/2 the speed of the master, the time taken by the apprentice to make 50 parts will be 2 times the time taken by the master. - Therefore, the time taken by the apprentice to make 50 parts = 2 * 100 minutes = 200 minutes. - So, the time taken by the apprentice to make one part (x) can be calculated using the equation: 50x = 200. - Solving for x, we get: x = 200 / 50 = 4 minutes.

Conclusion

The apprentice takes 4 minutes to make one part.