A contractor had to finish a work in 30 days and he employed some men to do the work. They finished half of the work in 20 days. When 60 more men were added, the work was finished on the specific time. How many men were employed in the beginning ? 158 ArtA contractor undertook to finish the work in 20 days, He employed 40 men 10 do the work. After 16 days. it was found that 2/3 of the work was completed. How many extra men should be employed so that the work should be finished in time