A software programmer does 20% of the work in 80% of the time, and 80% of the work in the remaining 20% of the time. If the code he writes is X lines long and he was given one month (30 days) to accomplish the task, then, assuming that the programmer works at a constant rate in each of the two stages, How many lines of code were written in the last two weeks, in terms of X?  Pick:  A) 13x /15  B) 15x/15  C) 7x/15  D) 2x/30  E) 13x/30
30 days- X lines   80% of 30   24 days; 0.2X lines   Remaining 6 days:   0.8X lines   Need to find out for last 14 days;   We know the number of lines for last 6 days: 0.8X   How about 8 days before that;   24 days- 0.2X   1 day - 0.2X/24 lines   8 days - (0.2X/24)*8 lines = (1/15)X lines   Total number of lines in last 14 days   (1/15)x + 0.8X = (1/15)x + (8/10)X = (52/60)X = (13/15)X lines of codes   13x /15NSWER:13x /15
<result>A</result>
A software programmer does 20% of the work in 80% of the time, and 80% of the work in the remaining 20% of the time. If the code he writes is X lines long and he was given one month (30 days) to accomplish the task, then, assuming that the programmer works at a constant rate in each of the two stages, How many lines of code were written in the last two weeks, in terms of X?