- A20 more
- B25 more
- C50 more
- DNone: the work is on schedule
Step-by-Step Solution
3000 man-days did , so the job is 5000. The last 2000 in 20 days needs exactly 100 men.
Answer: D) None: the work is on schedule
A contractor employs 100 men to build a hall in 50 days. After 30 days, 3/5 of it is done. How many more men does he need to finish on time?
Competition practiceTime & Work / Pipes
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Time & Work / Pipes practice questions
More Time & Work / Pipes practice
A (12 days) starts a job; B (18 days) joins after 3 days and C (36 days) after a further…A (6 days) and B (9 days) work on alternate days, B first. How many days does the job…A (10 days) and B (15 days) start a job; after 2 days C (20 days) joins; after 2 more…An inlet fills a tank in 3 hours and an outlet empties it in 4. They are opened…Two people work together on a job. Which statement is always true?