a sum of rs.8.25 is made up of 100 coins which are either 10 paise or 5 paise . find the ratio of coins?

• 0.1x+0.05y=8.25
  x+y=100
  x=65
  y=35
  ration=13:7
• 12 years agoHelpfull: Yes(14) No(1)
• The two equations can be... x+y = 100
  and 10x+5y = 825
  then solve for x and y...
  get the ratio... :D :D :D
• 12 years agoHelpfull: Yes(3) No(0)
• 10x+5y=825 => 2x+y=165
  x+y=100
  on solving we get x=65 y=35
  x=no of 10 paisa coins=65
  y=no of % paisa coins=35
• 12 years agoHelpfull: Yes(2) No(0)
• how can u solve dis problem pls tell me the reason
• 12 years agoHelpfull: Yes(0) No(0)
• let no of 10p coins be x and 5p coins be y
  x+y=100
  0.1x+0.o5y=8.25 => 10x+5y=825 => 2x+y=165
  =>x=65 y=35
  Ratio of coins is 13:7
• 12 years agoHelpfull: Yes(0) No(0)