Two turners working in common can perform a task in 15 days they began worked in common 5 days the rest a task the First turner finished in 16 days For how many days the First turner can perform a task? the second?

267
1) 1:15/=1/15 (part) - is done together in 1 day 2) 1/15*5=1/3 (part) - executed together 3) 1-1/3=2/3 (parts) - there was 4) 16: 2*3=24 (dn.) - the first will perform all work 1/24 part will execute in 1 day the first 5) 1/15-1/24=1/40 (part) - does in one day of the second 6) 1:1/40=40 (dn.) - it will be required to the second for all work
62
Answer add