(1). A farmer wants harvest X hectare of land in 60 Days and employed 70 women upon it. At the end of 50 days only half of the work was done, so he put on 70 extra women. By how much time did he exceed the specific time?

• (a). 10 days
• (b). 15 days
• (c). 20 days
• (d). 25days
• (e). None of these