If a commission of 10% is given on the marked price of book, the publisher gains 20%. If the commission is increased to 15%, then find the gain percent.

• Let retail price=Rs 100.
  commission=Rs 10
  then S.P=(100-10)=Rs 90
  gain=20%
  C.P=(100/120)*90
  =Rs 75
  new commission=Rs 15
  new S.P=(100-15)=Rs 85
  gain=(S.P-C.P)=(85-75)=Rs 10
  gain=(10/75)*100
  = 13.33%
  
• 11 years agoHelpfull: Yes(11) No(3)
• 25.45 %....let mp be marked price and cp be its cost price so
  sp1= mp+mp/10 = 11mp/10 which is the sum of cp and profit..so 11mp/10=cp + cp/5=>cp = 11m/12 now sp2= m+15m/100=115m/100 so gain percent in second case = (((115m/100)-cp)/cp)*100 putting cp=11m/12 we get profit =25.45%
• 11 years agoHelpfull: Yes(3) No(10)