The ratio of adults and teenagers is 1:30. if teenagers are increased by fifty and adults by 5 new ratio become 1:25. What is number of adults at present?

• (x+5)/(30x+50)=1/25
  
  x=15
• 9 years agoHelpfull: Yes(34) No(0)
• y=30x,(x+5)/(30x+50)=1/25 ...........x=15 ,Number of adults at present =x+5=20
• 9 years agoHelpfull: Yes(3) No(5)
• adults=x
  teenagers=30x
  (x+5)/(30x+50)=1/25
  
  x=15
• 9 years agoHelpfull: Yes(3) No(1)
• adults=a
  teenagers=t
  given a/t = 1/30----------------(1)
  teenagers increased by fifty that means t+50 and adults by 5 that means a+5
  the new ratio will be
  t+50/a+5 = 1/25------------(2)
  from eqn (1) ....t=a/30
  put this value in eqn (2)
  
  so,
  25(a/30 + 50) = a+5
  5a/6+1250 = a+5
  a/5= 1245
  a=6225
  
• 9 years agoHelpfull: Yes(1) No(20)
• x/y=1/30,(x+50)/(y+5)=1/25,x=15
• 9 years agoHelpfull: Yes(0) No(0)
• adults/teenagers=1/30
  let adults will be x and teenagers are 30x.
  a/q to the ques.,
  (x+5)/(30x+50)=1/25
  25x+125=30x+50
  5x=75
  x=15
• 5 years agoHelpfull: Yes(0) No(0)