Question

30 men can complete a work 30 days they start the work but after every 10 days 5 men left the job in h. m. d the work will complete now

Answer 1

Answer:

15

Step-by-step explanation:

10men can do1/3 of work in 10 days

Answer 2

Answer:

40 days

Step-by-step explanation:

30 men in 30 days complete work,

30 men complete 1/30 of work in 1 day

5 men complete 5/30*10/30=1/18 of work in 10 days

so, 30 men in first 10 days complete 6/18 of work

second 10 days, 25 men and 5/18 of work done

third 10 days, 20 men and 4/18 of work done

next 10 days, 15 men and  3/18 of work done

So total 40 days and 6/18+5/18+4/18+3/18=18/18=1 job done