20 workers can finish a work in 30 days. After how many days should 5 workers leave the job so the work is completed in 35 days?
20 workers per day work = 1/30
x/30 + 15 workers per day work * (35-x)= 1
(x + 1050 * 15 workers per day work - 30 * 15 workers per day work * x ) /30 =1
x +15 workers per day work * (1050 - 30x) = 30
What is the per day work of 15 workers =
per day work of 20 workers= 1/30
per day work of 1worker = 1/(30 * 20)= 1/60
per day work of 15 workers = 15 * 1/60 = 0.25 ?
20 workers per day work = 1/30
x/30 + 15 workers per day work * (35-x)= 1
(x + 1050 * 15 workers per day work - 30 * 15 workers per day work * x ) /30 =1
x +15 workers per day work * (1050 - 30x) = 30
What is the per day work of 15 workers =
per day work of 20 workers= 1/30
per day work of 1worker = 1/(30 * 20)= 1/60
per day work of 15 workers = 15 * 1/60 = 0.25 ?