In a box, total no. of Rs.2 and Rs.5 coins is 20. If the total coins amount to Rs. 76, number of Rs.5 coins in the box is ...

• 12
  
  let x be no. of Rs.2 coins and y be no. of Rs.5 coins.
  then,
  x+y=20 and 2x+5y=76
  after solving these eqns we get
  x=8, y=12
• 11 years agoHelpfull: Yes(3) No(0)
• lets no of rs 5 coins is x
  
  so 5x+2(20-x)=76
  3x=36
  x=12;
  
  ans=12;
• 11 years agoHelpfull: Yes(2) No(0)
• Total Amount = 76
  and we have 20 coins [rs. 2 and rs. 5]
  
  as u see 76 so
  5*12 =60
  2*8 =16
  60+16 =76 so answer ==> 12 coins of Rs. 5
• 11 years agoHelpfull: Yes(2) No(0)
• Thank u frnds....
  But actually I knew d answer b4.
  Just wanted 2 confirm.
• 11 years agoHelpfull: Yes(0) No(0)