Question

Please someone answer the questions 3 7 9 and 12 or any of these 4 questions if you know pls pls pls answer it is really urgent

Answer 1

7. No. of persons who can do a piece of work in 28 days=5
No.of persons who can do a piece of work in 1 day =5*28
No. of persons who can do a piece of work in 7 days =5*28/7=20 persons
Ans-20 persons can do a piece of work in 7 days