In what ratio must a grocer mix two varieties of pulses costing Rs.15 and Rs. 20 per kg respectively to obtain a mixture worth Rs.16.50 per kg?

• cost price of cheaper cost price of dearer
  15 20
  
  
  mean price
  16.50
  
  dearer price - mean price mean price -cheaper price
  1.50 3.50
  
  
  (qty of cheaper/qty of costlier)=(c.p of dearer-mean price)/(mean price-c.p of cheaper)
  x/y=3.50/1.50
  x/y=7/3
  x:Y=7:3
• 7 years agoHelpfull: Yes(0) No(0)