A cost of an article (including wages and raw materials) is 18.If the cost prize is three times of the raw material and the raw material is increased as 3:7 and the wages increased as 4:9 the what is the new cost of the article?

• r+w=18,
  r+w=3r,
  w=2r,
  3r=18 = > r=6,w=12.
  new price 6*(7/3)+12*(9/4)=41
• 10 years agoHelpfull: Yes(21) No(1)
• r+2r=18
  r=CP of raw material
  r=6,
  increase in r=> 6*7/3= 14
  wages=2r=12
  increased wage==> 12*9/4= 27
  cost= 27+14=41
• 10 years agoHelpfull: Yes(7) No(11)
• r be price of rawmatrl.
  2r be the wages
  r+2r -18
  r=6
  let 3x be the initial rw matrl ocst and 7x be the incrsed matrl cost
  thrfr 6=3x
  x=2 and 7x=14
  //y take wages as 4x and 9x
  4x=12 ==> x=3 and 9x=27
  therefore 14 +27 =41
  
• 10 years agoHelpfull: Yes(7) No(0)