Vinod ordered for 6 blue toys and some green toys. The price of a blue toy is 2.5 times that of a green toy. While preparing the bill, the clerk interchanged the number of blue and green toys which increased the bill by 145%. Find the number of green toys.

• Let price of green toy be a. Price of blue toy = 2.5a.
  Let the num of green toys purchased be x.
  Actual price = 6 * 2.5a + ax = 15a + ax
  Increased bill = 2.5ax + 6a
  
  2.5ax + 6a = 145/100 * (15a + ax)
  Cancelling a,
  2.5x + 6 = 1.45*15 + 1.45x, Solving x= 15
• 8 years agoHelpfull: Yes(4) No(0)
• ans is 615..
  let us consider number of green toy as m.
  price of blue toy=x
  price of green toy=y
  so,x=2.5y
  x/y=2.5
  now
  6x+my=(6x+my)(1+(145/100))
  we get,
  6y+mx=(6x+my)(245/100)
  now divide LHS and RHS with y
  final answer is..... 615
• 10 years agoHelpfull: Yes(1) No(6)
• ans is 615
  15a+xa=z------(1)
  2.5xa+6a=2.45*z-----(2)
• 10 years agoHelpfull: Yes(0) No(6)