Question

6 men can complete the electric wiring of a house in 7 days in how many days 21 men can do this work

Answer 1

6✖7=a✖21 ( let the days be a) then the answer will be=2 because it is inverse variation

Answer 2

hi

6 men = 7 days
1 man = 7/6
21 men = 7/6*21
= 24.5 days

hope it will help you
thnks...