12 men can complete a piece of work in 4 days, while 15 women can complete the same work in 4 days. 6 men start working on the job and after working for 2 days, all of them stopped working. How many women should be put on the job to complete the remaining work, if it is to be completed in 3 days.
(A) 15 (B) 18 (C) 22 (D) data inadequate

• 1 man 1 day's work=1/48
  1 woman 1 day's work=1/60
  after working 2 day 1/4 work completed
  remaining 3/4 is to be done by woman
  1 woman 3 day's work=3/60=1/20
  so 20*3/4=15 woman required.
  
  
• 12 years agoHelpfull: Yes(24) No(2)
• Given work done by men and women are same
  12m*4=15w*4
  m/w=5/4
  6 men started working and left after 2 days and the rest is completed by women in 3 days
  suppose 'a' number of women started working
  6m*2+aw*3=12*5*4
  12a=180
  a=15
• 5 years agoHelpfull: Yes(1) No(0)