the cost of manufacturing a popular model car is made up of three items:cost of raw material,labour and overheads- in a year the cost of three items were in the ration of 4:3:2.next year the cost of the raw material rose by 10% ,labour cost increased by 8% but overhead reduced by 5%.then %increase int the price of the car ?
a)7.67%
b)6%
c)0.54%
d)9.54%

• before increase total cost = 4+3+2=9,
  after increasing the cost = 9.54
  
  so increase of .54 over 9 , equal to 6%.
• 13 years agoHelpfull: Yes(24) No(2)
• 6%
  
  let initial costs are 4x,3x,2x and total 9x.
  
  New costs are 4.4 x, 3.24 x, 1.90x.. total cost = 9.54 x.
  
  Increase in cost =0.54 x.
  % increase = (0.54/9)*100 = 6%
• 13 years agoHelpfull: Yes(19) No(0)
• =(4x*110/100)+(3x*108/100)+(2x*95/100)
  =x/100(440+324+190)
  =9.54%
• 13 years agoHelpfull: Yes(6) No(13)
• 6%
  (0.54/9)100
• 13 years agoHelpfull: Yes(3) No(1)
• lets take a number 90 so acc. 2 questn
• 13 years agoHelpfull: Yes(0) No(3)