12 men complete a work in 9 days. After they have worked for 6 days, 6 more men joined them. How many days will they take to complete the remaining work?
(a) 2 days (b) 3 days (c) 4 days (d) 5days

• 12 men worked for 9 days = 12 * 9 = 108
  after working for 6 days = 12 *6 = 72
  days left = 108 - 72 = 36
  6 more men joined = 12 + 6 = 18
  so, no. of days taken = 36 / 18 = 2 days
• 8 years agoHelpfull: Yes(4) No(0)
• ans:2
  12 men worked for 6 days=(1/9)*6=2/3
  remaining=1-2/3
  =1/3
  1 m 1 day work=[18/(12*9)](since 6 more men joined)
  =1/6
  wkt,
  1/3=x/6
  x=2
  No of days=2.
  1/3=1/
  
• 9 years agoHelpfull: Yes(3) No(4)