Question

To complete a task in 45 days, a contractor employees 45 people for the same. upon reviewing the work after 30 days, he notices that only half of the task is complete. in order to complete the work in 45 days, how many extra people must he employ now?

Answer 1

Answer:

Step-by-step explanation:

Let X people complete task in 45 days

Therefore total work= 45*x

45 people complete half of task in 30 days

Therefore 45*x/2=45*30

X=60

Let Z extra people employed

But remain work done in 15 days

Therefore

60*45 - 45*30=(45+Z)*15

Z=45

Answer 2

Given:

Number of days require for completion of work = 45

Number of employees require for the completion of work = 45

To Find

The number of extra people required for work

Explanation:

Let the number of people that complete task be X

so, X people complete task in 45 days

total work = 45

45 people complete half of task in 30days

Therefore 45×/2= 45×30

X = 60

Let Z extra people employed

Hence,

60×45 - 45×30 = (45 + z) ×15

Z = 45

Answer = 45