Question

One person can do a certain job in six days, a second person can do the same job in two days, and a third person can do this job in three days. How many days will they take to do the job together?

Answer 1

wouldnt it be 6 days? I think.. lol is it a multiple choice question?

Answer 2

The correct answer is 1 day
person1->6days=>it makes 1/6 per day;
person2->2days=>it makes 1/2 per day;
person3->3days=>it makes 1/3 per day;
FROM ALL RESULTS 1/6+1/2+1/3=6/6=1 DAY