Question

3 persons can build a wall in 4 days, then 4 persons can build it in
(a) 53 days
(b) 3 days
(C) 43 days
(d) none of these​

Answer 1

Answer:

3 persons = 4 days

1 person = 4×3 = 12 days

4 persons = 12/4= 3 days.

b) 3 days

Answer 2

Answer:

Step-by-step explanation:

This is a inverse variation question-

Take the days taken x

3*4=4*x

12=4x

12/4=x

3=x

x=3 days.

4 people can do a work in 3 days according to the question.