If a commission of 20% is given on the marked price of a book, the publisher gains 25%. If the commissions a decreased to 15 %. Then the gain will be
a) 32.8%
b) 20 %
c) 22 %
d) 15 %

• ans. is 32.8
  let marked price be 100.
  now 20% commission , s.p=( 80/100)*100=80
  25% gain, (100+25)% of c.p=s.p
  c.p = 64
  now 15% decrease commission then new s.p is 100-15= 85
  gain= s.p-c.p
  gain= 85-64=21
  gain% =21*100/64 = 32.8%
  
• 8 years agoHelpfull: Yes(1) No(0)
• ans=21
  Let the retail price of book be 100
  if 20% commission goes s.p of book=80
  but their is profit of 25%
  c.p=100/125*80=64
  Now commission is reduced to 15%
  so, s.p=(100-15)=85
  
  profit=s.p-c.p
  
  85-64=21
• 10 years agoHelpfull: Yes(0) No(1)