Question

Первый рабочий за один час делает 32 детали,а второй за 4ч делает ,сколько первый за 5ч.За сколько часов они сделают вместе 216 деталей?

Answer 1

1) 32*5 /4= 40 (дет)- второй рабочий за час 2) 40+32=72 (дет) - вместе за час 3) 216/72=3 (ч) За 3 часа

Answer 2

Второй рабочий делает: 32*5/4 = 40 деталей в час
Вместе в час они делают: 32+40 = 72 детали
216/72 = 3 часа понадобится рабочим

Answer 3

Calculating Production Rates and Joint Work

To calculate the number of parts the first worker can produce in 5 hours and the time it takes for both workers to produce 216 parts together, we can use the information provided.

First Worker's Production in 5 Hours: The first worker can produce 32 parts in 1 hour. Therefore, in 5 hours, the first worker can produce: 32 parts/hour * 5 hours = 160 parts.

Combined Production Rate: The combined production rate of the two workers can be calculated by adding their individual rates. The second worker can produce 216 parts in 4 hours, so the second worker's production rate is: 216 parts / 4 hours = 54 parts/hour.

Time to Produce 216 Parts Together: To find the time it takes for both workers to produce 216 parts together, we can use the combined production rate. Let's denote the time it takes for both workers to produce 216 parts as x hours. The combined production rate is the sum of the individual production rates: 32 parts/hour (first worker) + 54 parts/hour (second worker) = (32 + 54) parts/hour.

Using the formula "work = rate * time," we can set up the equation: (32 + 54) * x = 216.

Solving for x: 86x = 216, x = 216 / 86, x = 2.5116 hours.

Therefore, it will take approximately 2.51 hours for both workers to produce 216 parts together.

In summary, the first worker can produce 160 parts in 5 hours, and it will take approximately 2.51 hours for both workers to produce 216 parts together.