An exhibition was conducted for 4 weeks. The number of tickets sold in 2nd workweek was increased by 20% and increased by 16% in the 3rd workweek but decreased by 20% in the 4th workweek. Find the number of tickets sold in the beginning, if 1392 tickets were sold in the last week

• let initially X ticket has been sold.
  so now in 2nd week 20% increases so
  x*120/100
  in 3rd week 16% increases so
  x*(120/100)*(116/100)
  in 4th week 20% decrease so
  x*(120/100)*(116/100)*(80/100)=1392
  x=1250 Ans.
• 9 years agoHelpfull: Yes(10) No(1)
• (X-20*X)/100=1392====>X=1740.(IN LAST WEEK)
  (X+16*X)/100=1740====>X=1500. (IN 3RD WEEK)
  (X+20*X)/100=1500=====>X=1250 .(IN 2ND WEEK).
  
  sO ANSWER IS 1250. TICKET SOLD IN BEGINNING.
  
  
  1250.
• 9 years agoHelpfull: Yes(8) No(1)
• let x be total number of tickets
  for last week it is decreased be 20% hence
  x-0.2x=1390
  x=1737.5
  for third week it is increased by 16% hence
  x+0.16x=1737.5
  x=1497.84
  for second week it is increased by 20% hence
  x+0.2x=1497.84
  x=1248.2
  hence the answer is 1248.2 which is close 1250.
  so the correct answer is 1250
• 9 years agoHelpfull: Yes(5) No(0)
• simplest approach -
  
  1.2x X 1.16 X 0.8 = 1392
  
  find x. x= 1250
• 9 years agoHelpfull: Yes(4) No(2)
• Ans :1250
  (100÷116)*1392
• 9 years agoHelpfull: Yes(1) No(6)
• 1000
  let initial week be >x
  next increases 20% means>1.2x
  next 3rd week 16%>1.392x
  4th week 20% dcrmnt equats to 1392
  ans 1000
• 9 years agoHelpfull: Yes(0) No(10)