Raj sells a lamp for Rs.450 bears a loss of 20% . To earn a profit of 20% , he should sell the lamp for?
[A] RS.575
[C] RS.675
[B] RS.670
[D] RS.775

• loss=c.p-s.p/c.p
  =>1-(450/c.p)=0.2
  =>c.p=562.5
  gain=s.p-c.p/c.p
  =>0.2=(s.p/562.5)-1
  =>s.p=Rs.675.
• 10 years agoHelpfull: Yes(6) No(1)
• (80/450)=(120/x)
  x=675
  
• 10 years agoHelpfull: Yes(5) No(0)
• from the questions 450s 80%
  for getting 20% profit herecover 40% because already given thathe loss 20%
  so 4080% is 450 40% us 225
  then 450+225=675
  
• 10 years agoHelpfull: Yes(0) No(1)
• s.p of lamp=450
  loss=20%
  s.p=80/100*c.p
  450=80/100*c.p
  c.p=450*100/80
  c.p=562.5
  so we got the cost price
  Now,as to get 20% profit what should be the sp?
  so sp =120% of cp
  sp=120/100*562.5
  s.p=675
  answer is 675
• 10 years agoHelpfull: Yes(0) No(0)
• c.p=100/100-20*450
  c.p=562.5 of 20% is 112.5
  s.p=675
• 9 years agoHelpfull: Yes(0) No(0)
• sp=450 ,loss=80
  cp=4500/8
  sp=4500*120/8
  => 675
• 7 years agoHelpfull: Yes(0) No(0)