# How many more Man Need to be Engaged to Complete Work on Time?

A contractor undertakes to build a wall in 50 days. He employs 50 people. After 25 days, he finds that only 40% work is complete. How many more man need to be engaged to complete work on time?

- 20
- 25
- 30
- 35

**Answer: (3) 30**

**Explanation:-**

A contractor undertakes to build a wall with 50 people = 50 days

After 25 days, he finds that only 40% work is complete.

Then, the remaining work = 1 – 40/100

= 1 – 2/5

= (5 – 2)/5

= 3/5

Then, the number of men to complete the remaining work = 3 x 50/5

= 30

So, 30 men need to be engaged to complete the work on time.

Hence, the answer is (3) 30.