c.p.of 21 articles is equal to s.p.of 18 articles

• Profit percentage = 16.67 %.
  solution-
  let cp = x, profit = y. so sp= cp+y;
  according to given data 21x=18(x+y). after solving we get x=6y so its clear that profit will be 100/6 %= 16.67%
• 7 years agoHelpfull: Yes(3) No(0)
• given c.p=21, s.p=18
  short cut is- gain%=(c.p-s.p)/s.p
  =3/18=0.1667
  since for percentage gain% is multiplied by 100
  therefore gain% = 16.67
• 7 years agoHelpfull: Yes(2) No(1)
• given c.p=21, s.p=18
  short cut is- gain%=(c.p-s.p)/s.p
  =3/18=0.1667
  since for percentage gain% is multiplied by 100
  therefore gain% = 16.67
• 7 years agoHelpfull: Yes(1) No(0)
• The answer is 14 tries.
• 7 years agoHelpfull: Yes(1) No(0)
• There is a shortcut in which if u can follow it whenever c.p of m =s.p of n
  then just follow the rule (m-n)/n*100 in this case lets try it up
  m=21
  n=18
  m-n=3
  (m-n)/n=3/21
  u will get ans when u multiply it with 100
  it is 16.67
• 7 years agoHelpfull: Yes(0) No(0)
• C.P. = 21
  S.P. =18
  Gain % = (C.P. - S.P.)/S.P.
  =(21 - 18)/18
  =3/18
  =1/6 *100 = 50/3 =16.67
• 6 years agoHelpfull: Yes(0) No(0)
• CP of each article be Rs 1
  
  CP of 18 articles =Rs18 ,sp of 18 articles =Rs 21
  Profit=21−18=3Rs.
  Profit % = 3/18* 100 = 16.66%.
• 1 year agoHelpfull: Yes(0) No(0)