Q. 40 men can build a wall 20m high in 15 days. The number of men required to build a similar wall 25m high in 6 days will be:
Option
(a)100
(b)125
(c)150
(d)200

• ans. (b)125
  (M1*D1)/W1 = (M2*D2)/W2
  M1 = 40
  D1 = 15
  W1 = 20
  M2 = ?
  D2 = 6
  W2 = 25
  
• 10 years agoHelpfull: Yes(2) No(0)
• ans. is 125... this can be done by calculating efficiency which is work/(totaltime)or(total power)
  in this case we can take power time which will be equal to number of man * no of days
• 8 years agoHelpfull: Yes(0) No(0)
• (15*50)/6=125
  
• 7 years agoHelpfull: Yes(0) No(0)
• (M1*D1)/h1=(M2*D2)/h2
  M2=?
  (40*15)/20=(M2*6)/25
  M2=125
• 6 years agoHelpfull: Yes(0) No(0)