x number of men can complete a job in 30 days if there were 6 men more the work could be finished in 10 days less.what is the original member of men

• In 1st case 1 man 1 day work = 1/(x*30)
  In 2nd case 1 man 1 day work = 1/[(x+6)*20)]
  both should be equal so value of x=12 men.
• 11 years agoHelpfull: Yes(20) No(3)
• (x+6)*20=x*30
  x=12
• 11 years agoHelpfull: Yes(15) No(0)
• X/X+6=20/30
  this gives X=12.
  
• 11 years agoHelpfull: Yes(5) No(0)
• x man complete work in 30
  1 man will complete in 30*x days
  so x+6 man will complete in (30*x)/(x+6)=20
  => 30x=20x+120
  => 10x=120
  => x=12
  so originally there are 12 men
• 11 years agoHelpfull: Yes(3) No(0)
• Let the no of original no of men be x
  Then in 1st case-it will be 30x(time X x)
  2nd case-when no. of men increases-x+6
  Time=30-10=20
  Now same work is to be done,therefore
  30x=20(x+6)
  10x=120
  X=12men
• 11 years agoHelpfull: Yes(2) No(0)
• x man complete work in 30
  1 man will complete in 30*x days
  so x+6 man will complete in (30*x)/(x+6)=10
  => 30x=10x+60
  => 20x=40
  => x=2
  so originally there are 2 men
  
• 11 years agoHelpfull: Yes(1) No(8)
• x man's one day work=1/30
  x+6 men's one ady work =1/(30-10)
  so here (x+6)*(30-10)=x*30
  solving it x=12 men
• 11 years agoHelpfull: Yes(1) No(0)
• x+6 men do in (x*30)/x+6=(30-10)=20 days, solving x=12
• 11 years agoHelpfull: Yes(0) No(1)
• since it is said that 10 days less ie=30-10
  
  x+6 men dowork in (x*30)/x+6=(30-10)=20 days,
  After solving x=12
• 11 years agoHelpfull: Yes(0) No(0)
• x man complete work in 30 days
  1 man will complete the work in 30*x days
  so, x+6 men will complete the works in (30*x)/(x+6)=10
  than,
  30*x=10x+60
  30x-10x=60
  20x=60
  x=3
  so,3 men.
• 11 years agoHelpfull: Yes(0) No(5)
• x*30=(x+6)*10
  20x=60
  x=3
• 11 years agoHelpfull: Yes(0) No(3)
• m1d1h1=m2d2h2
  man=m;
  days=d;
  hours=h
  so men=x then,
  30*x=(x+6)*10
  3x=x+6
  2x=6
  x=3,
  so totally 3 men
• 11 years agoHelpfull: Yes(0) No(2)
• to complete a work in 30 days x men are required
  so, in 1 days x*30 men required
  so, in 20 days x*30/20 men are required
  
  x*30/20=x+6
  =3x=2x+6
  =x=6
  original members are =6+6 =12 men
• 10 years agoHelpfull: Yes(0) No(0)
• 30x=(x+6)*20
  =>x=12
• 10 years agoHelpfull: Yes(0) No(0)