if 15 men dig 35cu units for 7hrs. how many men can dig 65cu units in 5hrs??

• (15*7)/35 = (m2*5)/65
  m2 = 39 men .
• 9 years agoHelpfull: Yes(18) No(0)
• fast methods
  m1*t1*w2=m2*t2*w1
  m2=(m1*t1*w2)/(w1*t2)
  m2=(5*7*65)/(35*5)=39
  ans: 39 men
• 9 years agoHelpfull: Yes(9) No(2)
• formulae------> (N1*D1*H1)/W1=(N2*D2*H2)/W2
  Given,
  N1=15men N2= ? (say X)
  D1= - D2= -
  H1= 7hrs H2= 5hrs
  W1=35 cu units W2= 65 cu units
  
  on substituting above data,
  (15*7)/35=(X*5)/65
  on solving,
  X=39 men
• 8 years agoHelpfull: Yes(6) No(0)
• 15*7---->35cu
  x*5------->65cu
  cross multiplication
  x=(15*7*65)/35*5
  =39
• 9 years agoHelpfull: Yes(4) No(0)
• MH/W=mh/w
  15*7/35=m*5/65
  m=39
• 8 years agoHelpfull: Yes(1) No(0)
• may be 11 members
  
• 9 years agoHelpfull: Yes(0) No(8)
• 39 men
  (n1*d1*h1)/w1=(n2*d2*h2)/w2
• 8 years agoHelpfull: Yes(0) No(0)
• 15 men-35cu-7hr
  x men-65cu-5hr
  
  
  1hr-5cu-15men
  1hr-1cu-3men
  
  65cu-5hr
  13cu-1hr
  
  for 13cu we required 39men
  so ANSWER IS 39 MEN
  
  
• 8 years agoHelpfull: Yes(0) No(0)
• ((15*7)/35)=((m*5)/65)
  
  Then m=39.
• 8 years agoHelpfull: Yes(0) No(0)
• {m1*t1)/w1 = (m2*t2)/w2
  (15*7)/35 = (x*5)/65
  x=39
• 8 years agoHelpfull: Yes(0) No(0)
• correct answer is 39
  EXPLANATION:
  15*7/35=X*5/65
  x=39
• 8 years agoHelpfull: Yes(0) No(0)