Q. Arjun sells 20 dolls at Rs. 60 and makes profit 20%. How much dolls he buys at Rs.60?

• Ans: 24 dolls
  EXP:
  if s.p of 20 dolls=Rs.60
  gain=20%, den
  s.p of 1 doll=3
  c.p of 1 doll=100*3/(100+20)
  =2.5
  no.of.dolls for 60rs=60/2.5
  =24dolls
• 10 years agoHelpfull: Yes(1) No(0)
• 24
  C.P. of 20 dolls=60*(100/120)=50,
  C.P. of each doll=50/20=2.5 Rs.
  Number of dolls buyed @ Rs 60= 60/2.5=24
• 10 years agoHelpfull: Yes(0) No(1)
• Selling Price of 20 dolls = Rs.60
  Profit = 20%
  Cost Price of 20 dolls = (100/120) x 60 = Rs.50
  Each doll Cost Price = Rs.(5/2)
  Suppose, he buys a dolls then
  a x (5/2) = Rs.60
  a = 60 x (2/5) = 120/5 = 24
  So, he buys 24 dolls..
  
• 10 years agoHelpfull: Yes(0) No(0)