It takes 2 team of farm workers 12 days to completely prepare a piece of land for planting. if both team of workers were to work separately, one of them can complete the work 10 days earlier than the other, how many days will it take each of them to separately complete the work? Select the correct option:
A) 12 and 22
B) 11 and 21
C) 15 and 25
D) 9 and 19
E) 20 and 30
Work = (A)(B)/(A+B) where A and B are the individual times of each entity.   Here, we're told that (working together) the two team of workers would complete a job in 12 days. This means that (individually) each of team would take MORE than 12 days to do the job.   Answers D, A and B are illogical, since the individual times must both be greater than 12 days.   so we can TEST the values for Answers C and E.   Using the values for Answers B and D...   Answer B: (15)(25)/(15+25) = 375/40 = 9.4 This is a match   Answer 20 and 30: (20)(30)/(20+30) = 12   Final Answer:   20 and 30
<result>E</result>
It takes 2 team of farm workers 12 days to completely prepare a piece of land for planting. if both team of workers were to work separately, one of them can complete the work 10 days earlier than the other, how many days will it take each of them to separately complete the work?