Manu, Manju and Maya can do a work in 90, 30 and 45 days respectively. If they work together, in how many days will they complete work?	Answers:  A) 15  B) 10  C) 20  D) 25  E) 30
Manu’s one day’s work = 1/90   Manju’s one day’s work = 1/30   Maya’s one day’s work = 1/45   Manu, Manju and Maya together can do the work = 1/90 + 1/30 + 1/45   = (1+3+2)/90   = 1/15   So, They will complete the work in 15 days.   15NSWER:15
<result>A</result>
Manu, Manju and Maya can do a work in 90, 30 and 45 days respectively. If they work together, in how many days will they complete work?