1) 32 * 5 = 160 (d) - makes 1 worker in 5 hours.
2) 160:4=40 (d/h) - productivity of the second worker.
3) 32+40=72 (d/h) - total productivity.
4) 216:72 = 3 (h) - so many workers will cope
Related tasks:
With the joint work of two controllers, they can check 48 manufactured devices in 8 hours of work. The first controller with the same productivity can do all this work alone in 12 hours. How long will it take the second controller to do all this work, if he works alone and with the same performance as before.
Two workers can complete the task in 8 hours. If the first worker works alone, he can complete the task in 12 hours. Determine: a) how many times the labor productivity of the first worker is greater than the labor productivity of the second.
b) what part of the labor productivity of the first worker is the labor productivity of the second.
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« The first worker makes 4 more parts per hour» - found 53 jobs
(impressions: 4146 , answers: 406 )
Answer: 5
Job B14()(impressions: 4215 , answers: 371 )
The first worker makes 4 more parts per hour than the second worker, and finishes work on an order of 713 parts 8 hours earlier than the second worker completes an order of 837 of the same parts. How many parts does the first worker make per hour?
Answer: 31
Job B14()(impressions: 2917 , answers: 298 )
The first worker completes an order for 460 parts 3 hours faster than the second worker. How many parts per hour does the first worker make if it is known that he makes 3 more parts per hour?
Answer: 23
Job B14()(impressions: 2854 , answers: 285 )
The first worker completes an order for 192 parts 4 hours faster than the second worker. How many parts per hour does the first worker make if it is known that he makes 4 more parts per hour?
Answer: 16
Job B14()(impressions: 2969 , answers: 250 )
For the manufacture of 33 parts, the first worker spends 8 hours less than the second worker for the production of 77 of the same parts. It is known that the first worker makes 4 more parts per hour than the second. How many parts per hour does the second worker make?
Answer: 7
Job B14()(impressions: 2915 , answers: 233 )
For the manufacture of 32 parts, the first worker spends 4 hours less than the second worker for the production of 48 of the same parts. It is known that the first worker makes 2 more parts per hour than the second. How many parts per hour does the second worker make?
Answer: 6
Job B14()(impressions: 2946 , answers: 230 )
For the manufacture of 16 parts, the first worker spends 6 hours less than the second worker for the production of 40 of the same parts. It is known that the first worker makes 3 parts more per hour than the second. How many parts per hour does the second worker make?
Answer: 5
Job B14()(impressions: 3089 , answers: 225 )
The first worker makes 2 more parts per hour than the second worker, and finishes work on an order of 621 parts 4 hours earlier than the second worker completes an order of 675 of the same parts. How many parts does the first worker make per hour?
Answer: 27
Task B14 (Posted on 03/23/2018
The first worker makes 10 more parts per hour than the second worker and completes an order of 60 parts 3 hours faster than the second worker who completes the same order. How many parts per hour does the second worker make?
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Arina--mich
21 hours ago
When solving mathematical problems, we apply not only the rules of mathematics, but also logic.
According to the conditions of the problem, in 3 hours the first worker will make not only the same number of details as the second worker, but also additionally 3*10=30 details.
Therefore, in the same 3 hours, the second worker did 60-30=30 details. And in an hour he does 30/3=10 details.
The second worker makes 10 parts per hour.
We check.
60/10=6 hours of work to complete the order by a second worker.
10+10=20 parts are made in an hour by the first worker.
60/20=3 hours of work to complete the order by the first worker.
Therefore, the first worker will complete the same order in 3 hours, and the second worker in 6 hours. The result - the first worker completes the order 3 hours faster.
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Olga-n
21 hours ago
Let's take as X the number of parts performed in 1 hour by the second worker. Then the first worker makes X + 10 parts in 1 hour. Each of them will complete the norm of 60 parts in time: the 1st -60 / (X + 10), and the 2nd worker in 60X. Let's make the equation: 60 / X - 60 / (X-10) \u003d 3.
We find the common denominator X (X-10) and additional factors: X-10; X and X(X-10), respectively, to each term of the equation and we get an equation of the form:
3X^2+ 30X -600 = 0. Find the roots of the quadratic equation X1 = 10, X2 = -20 (not satisfactory). Therefore, the second worker makes 10 parts per hour. Answer: 10 items.
