A book seller fixed his selling price of books at 40% above the Cost Price. He sells half of the stock of books at this price now he offers a discount of 15% on original SP for one quarter of stock and remaining at a discount of 30% on original SP. Find the gain percent altogether.

• 24.25%
  
  If CP=x, then SP=1.4x & stock=y, then CP of bookseller=xy
  Total SP=[1.4x*(y/2)] + [1.4x*(85/100)*(y/4)] + [1.4x*(70/100)*(y/4)]
  =0.7xy+ 0.2975xy + 0.245xy=1.2425xy
  Gain %=100*(1.2425xy -xy)=24.25
• 9 years agoHelpfull: Yes(0) No(0)
• ans is 24.5%
  let 100 books
  cp=x
  50(140x)/100+25(119x)/100+25(98x)/100
  (280x+119x+98x)25/100
  497x/4
  124.5x this is total gain
• 9 years agoHelpfull: Yes(0) No(0)