27. The total number of coins in a box consisting of only two types of coins (of denomination 1 Rupee and 2 Rupees ) is 140. If the total amount of money in the box is Rs. 162, then find the number of 1 Rupee coins in the box.

• let Re.1 coins be x and Re.2 be y.
  x+y=140
  x+2y=162
  x+2(140-x)=162
  x= 118 ans
• 11 years agoHelpfull: Yes(13) No(0)
• let no of 2 rupee coins be x
  so 2x+ (140-x)= 162
  x=22
  so no of 1 rupee coins are (140-22)= 118
• 11 years agoHelpfull: Yes(2) No(0)
• given x+y=140
  & x+2y=162
  so, x=118
• 11 years agoHelpfull: Yes(1) No(0)
• let Re.1 coins be x and Re.2 be y
  then according to problm x+y=140
  x+2y=162
  on solving we get x=118 and y=22
• 10 years agoHelpfull: Yes(0) No(0)