A certain number ofmen complete a piece of work in 45 days. If there were 5 men more, the work could be finished in 9 days less. How many men were originally there?
(a) 30
(b) 15
(c) 25
(d) 20

• x*45=(x+5)*36
  hence x=20
• 10 years agoHelpfull: Yes(3) No(0)
• man*day
  man*day=man*45... (1)
  thn 5 more men
  so man*day= (man+5)*(45-9)...(2)
  equate 1 and 2
  man=20
  therefore 20-5=15 men were there originally.
  
• 10 years agoHelpfull: Yes(2) No(7)