a man buys m no. of pens for rs. n each and sells n no. of pens for rs. m each. then what is the profit he have earned?

• c.p. of 1 pen=Rs n (given each)
  so c.p. of m pens=rs mn
  
  s.p. of 1 pen =rs m
  so s.p. of n pens=rs mn
  so profit =s.p.-c.p.=0(zero)
• 9 years agoHelpfull: Yes(66) No(17)
• the cost price of m no. of pens = n.
  
  and the sell price of n no. of pens = m
  so, the sell price of 1 no. of pen = m/n
  so, the sell price of m no. of pens =(m/n)*m=m^2/n
  so profit=(m^2/n)-n=((m^2-n^2)/n)
• 9 years agoHelpfull: Yes(33) No(18)
• a man buys m pens for rs. n each= m*n=rs. mn
  
  he sells n pens for rs. m each =n*m=rs. mn
  but, actual cost for n pens is =n*n=rs. n^2
  
  profit or loss depends on value of mn-n^2==>n(m-n)/100
• 9 years agoHelpfull: Yes(4) No(0)
• Let 6 item brought at 5 rs. and sold 5 items at 6 rs.
  Then l.c.m of 6 and 5=30
  S.P of items=30/6*5=25
  C.P of items=30/5*6=36
  Loss=36-25=11
  Loss%=11/25*100=44%
• 9 years agoHelpfull: Yes(3) No(3)
• there will be loss no profit
• 6 years agoHelpfull: Yes(3) No(0)
• man buys m pens for rs n=m*n
  sells n pens for rs m=n*m
  there is no profit and no loss
• 8 years agoHelpfull: Yes(2) No(0)
• c.p of each pen = n
  s.p of each pen =m
  pofit = s.p-c.p therefore
  profit =m-n
  total profit =individual profit*no. of pens
  hence total profit= (m-n)*m
• 7 years agoHelpfull: Yes(2) No(0)
• i think answer would be =n^2 Rs
• 9 years agoHelpfull: Yes(1) No(5)
• Quantity. Price
  CP m n -----> eq 1
  SP n m -----> eq 2
  
  by making quantity same we can easily calculate...
  
  multiply eq 1 by n & eq 2 by m
  
  
  Quantity. Price
  
  CP n * ( m n ) -----> eq 1
  SP m *( n m ) -----> eq 2
  
  
  Quantity. Price
  CP nm n^2 -----> eq 1
  SP mn m ^2 -----> eq 2
  
  
  Profit will be = ( m^2 - n^2 )
• 5 years agoHelpfull: Yes(1) No(0)
• "m" -->consider an example like: buys 3 pens at rs 2/each i.e c.p= 6 rs,
  
  buys 2 pens at rs 3/each i.e 6rs
  
  so s.p for 3 pens is RS 9
  profit is (6-9)=3 which is "m"
  
  
• 9 years agoHelpfull: Yes(0) No(0)
• In this question must be N
• 9 years agoHelpfull: Yes(0) No(0)
• profit is 0
  m*n=n*m
• 6 years agoHelpfull: Yes(0) No(0)
• Cost price of 1 pen is = n
  Selling price of 1 pen is = m
  Cost price of n pens will be= n*n
  Selling price of n pens is= n*m
  Profit = S.P-C.P
  = n(m-n)
• 6 years agoHelpfull: Yes(0) No(1)
• no profit no loss
• 4 years agoHelpfull: Yes(0) No(0)