Question

4.If 125 people can do a piece of work in 75 days, in how many days will 25 people do it?​

Answer 1

Answer:

15 days

Step-by-step explanation:

125 people can do a piece of work in 75 days

1 man can do a piece of work in 75/125 days

i.e. 3/5 days

25 people can do a piece of work in (3/5) ×25

= (3 × 5 ) days

=15 days

Answer 2

since the work is completed in 75 days

in one day 1/75 work will be done

so in one day 125 people do 1/75 work

in one day one person can do 1/(75*125)

in one day 25 people can do 25/(75*125) =1/375

Hence, to finish the work (1/375)*(375 days) = 1

So in 375 days 25 people will complete the work.