Question

Трое рабочих изготовили некоторое число деталей. Первый рабочий изготовил 30 процентов всех деталей, второй 60 процентов остатка , а третий остальные 84 детали. Сколько всего деталей изготовили рабочие?

Answer 1

Сначала берем 2 и 3 рабочих
2 рабочий-60%
3 рабочий-84 дет
x деталей-60%
84 детали-40%
(84*60)/40=126
126+84=210 деталей изготовили вместе второй и третий рабочие
Дальше берем первого и второго вместе с третьим рабочих
1 рабочий-30%
2 и 3 рабочие-210 деталей
x деталей-30%
210 деталей-70%
(210*30)/70=90
90+210=300
300 деталей вместе изготовили трое рабочих

Answer 2

Calculation of the Total Number of Parts Manufactured

To calculate the total number of parts manufactured by the three workers, we need to follow the information provided in the question. Let's break it down step by step:

1. The first worker manufactured 30% of all the parts. 2. The second worker manufactured 60% of the remaining parts after the first worker's production. 3. The third worker manufactured the remaining 84 parts.

To find the total number of parts, we can start by assuming the total as x. Then we can calculate the number of parts produced by each worker and sum them up to find the value of x.

Let's calculate it:

1. The first worker produced 30% of x, which is 0.3x. 2. The second worker produced 60% of the remaining parts after the first worker's production. This would be 0.6 * (x - 0.3x), which simplifies to 0.6 * 0.7x or 0.42x. 3. The third worker produced the remaining 84 parts.

Now, we can set up an equation to find the value of x:

0.3x + 0.42x + 84 = x

Simplifying the equation:

0.72x + 84 = x

Rearranging the equation:

0.72x - x = -84

-0.28x = -84

Dividing both sides by -0.28:

x = -84 / -0.28

x = 300

Therefore, the total number of parts manufactured by the workers is 300.