If a cost college Rs0.70 a companyto produce a program for yhe home coming football game.if Rs 15000 was received for addvertisement in the pgm ,how many copies rs 0.50 a copy must be sold to make a profit of Rs 8000

• let no. of pages be x
  while selling with 0.70paise/page total cost=0.70*x
  while selling with 0.50paise/page toatal cost=0.50*x
  now according to question-
  (0.70x - 0.50x) + 8000 = 15000
  therefore, x=35000 copies must be sold
• 9 years agoHelpfull: Yes(12) No(1)
• amt received 15000
  make profit 8000
  can invest 7000
  if making cost .70 and selling price .50
  then lost .20
  total copy 7000/.20=35000
• 8 years agoHelpfull: Yes(2) No(0)
• let no. of pages be x
  while selling with 0.70paise/page total cost=0.70*x
  while selling with 0.50paise/page toatal cost=0.50*x
  now according to question-
  (0.70x - 0.50x) + 8000 = 15000
  therefore, x=35000 copies must be sold
• 9 years agoHelpfull: Yes(1) No(0)
• Employee's salary for first two years = Rs.40,000 (per annum)
  
  So, the total salary for first two years = Rs.80,000 ...(1)
  
  Given that, his salary increased by Rs.4000(per annum) for next 15 years.
  
  So, salary for next 15 years are 44,000, 48,000, 52,000,...
  Total salary for next 15 years is 44,000 + 48,000 + 52,000,...
  
  Note that, above sequence is an A.P with first term a = 44000, common difference = d = 4000, total number of terms = n = 15.
  We know that, sum of first n terms in A.P = (n/2)[2a+(n-1)d] and nth term = a+(n-1)d
  Therefore, 15th term = 44,000+(15-1)4000 = 1,00,000 ...(2)
  And the sum of 15 terms = 44,000 + 48,000 + 52,000,+... + 1,00,000
  = (15/2)[2x44000 + 14x4000]
  = (15/2)(144000) = 10,80,000 ...(3)
  
  From (1) and (3), the total salary of first 17 years = Rs.80,000 + Rs.10,80,000 = Rs. 11,60,000 ...(4)
  
  Form (2), we have, The salary of 17th year = Rs.1,00,000
  
  That is, till his retirement, his salary = Rs.1,00,000 (per annum) ...(5)
  
  Let the employee works for X more years.
  Then, the total salary for this X years = Rs.1,00,000 x X
  
  And his experience = 17 + X years ...(5)
  
  Given that, the average salary for 17+X years = Rs.80,000
  
  That is, Rs.80,000 = [Rs. 11,60,000 + RS.1,00,000 x X]/(17+X)
  (17+X)80,000 = [11,60,000 + 1,00,000 x X]
  (17+X)8 = [116 + 10X]
  [136-116] = 10X - 8X
  20 = 2X
  X = 10
  
  Therefore, from eqn 5, Employee's experience = 17+10 = 27 years.
  
  Since, he hired at his 25th age,his retirement age will be = 25+27 = 52.
  
  Hence, the answer is 52
• 8 years agoHelpfull: Yes(1) No(2)
• ans. 35000
  
• 9 years agoHelpfull: Yes(0) No(2)
• let x be total no of pages.
  for 0.70paise per page total cost=0.70x
  for 0.50paise per page total cost=0.50x
  given:
  (0.70x-0.50x)+8000=15000
  0.20x=7000
  x=700000/20=35000
• 9 years agoHelpfull: Yes(0) No(0)