Question

@= A contractor estimates that 3 persons could rewire Jasminder's house in 4 days. If,
he uses 4 persons instead of three, how long should they take to complete the job?​

Answer 1

Answer:

Total work= 3(person)×4(days) = 12

Now number of persons=4

4(persons)× x(days) = 12

x(days) =12÷4= 3 days

This is a case of inverse proportion