Question

If 3 persons can do a piece of
work in 4 day then 4 persons can do it how many days? ​

Answer 1

Answer:

The answer is 3 days

Explanation:

.

If 3 workers built the wall in 4 days it means each worker can build 1/12 wall per worker day

If X is the number of days for 4 workers

X*((1/12) wall/(worker*day))*4 worker = 1 wall

Worker and wall cancel out resulting in the following:

(X/(12 day))*4 = 1

X/(3 day) = 1

X = 3 days

Answer 2

Answer:

3 days

Explanation:

3 persons= 4days

1person= 4×3 days

4 person = 4×3/4 days