28 children can do a piece of work in 50 days.how many children are needed to complete the work in 30 days?
A. 49 B. 40 C. 35 D. 45

• M1*D1=M2*D2=>28*50=x*30 i.e.,46.6
• 8 years agoHelpfull: Yes(38) No(13)
• 1 children can do a whole work in 1440 days
  verify the options with 1440 /49=29.384 approx=30
  ans=49
• 8 years agoHelpfull: Yes(16) No(33)
• m1 x d1=m2 x d2
  28 x 50=m2 x 30
  m2=140/3= =46.6 days
• 8 years agoHelpfull: Yes(8) No(4)
• we know work=persons*days;
  here work is same in both cases w1=w2;
  28*50=p*30
  p=45 approximately
  
• 8 years agoHelpfull: Yes(5) No(5)
• 28 c in 50.
  to complete 30d.
  (50/30)*28=46.6.
• 8 years agoHelpfull: Yes(2) No(2)
• 45ans
  25 Days = 14 children
  5 Days 2.8 Children
  So it comes approximately 45
• 8 years agoHelpfull: Yes(2) No(6)
• M1*D1=M2*D2
  =>28*50=x*30
  i.e.,46.66667
• 6 years agoHelpfull: Yes(2) No(1)
• men*days=works
• 8 years agoHelpfull: Yes(1) No(5)
• nearest answer=45
  28*50=x*30=46.6
• 6 years agoHelpfull: Yes(1) No(1)
• 45 perfect
• 6 years agoHelpfull: Yes(1) No(0)
• m1*d1=m2*d2
  28*50=x*30
  x=40
• 5 years agoHelpfull: Yes(1) No(3)
• m1*d1=m2*d2
  28*50=m2*30
  46.6
• 6 years agoHelpfull: Yes(0) No(0)
• D it satisfy the given conditions
• 6 years agoHelpfull: Yes(0) No(1)