Question

if three persons can do a piece of work in 4 days then 4 person can do it in how many days​

Answer 1

Answer:

3 days

Step-by-step explanation:

if 3 persons are doing the work in 4 days

then, 1 person will do the same work in 12 days

so 4 persons will do the work faster

∴ 12/4

 =3 days

Answer 2

Answer:

3 days

Step-by-step explanation:

it is a inverse variation

so,A/q

3×4=4x

12/4=x

3=x

so, 4 persons can do the same piece of work in 3 days