1 Rs, 50 paise, 25 paise coins are there. And we have 10 rupee and total number of coins are 18. then how many coins of 50 paise

• the min number of 25ps coins has to be 4 or a multiple of four so we start substituting 4,8,...and check the conditions:
  x + y + z = 18
  x + 0.5y + 0.25z = 10
  also minimum number of 50ps coins has to be 2
  x = 6
  y = 4
  z = 8
  ans : y = 4
• 12 years agoHelpfull: Yes(6) No(1)
• 6 * 1 rs = 6 ( total rs = 6, tot coins = 6)
  4 * o.5 rs = 2 ( total rs = 8, tot coins = 10)
  8 * 0.25 = 2 ( total rs = 10, tot coins = 18)
  so total 0.5 rs is 4
• 12 years agoHelpfull: Yes(5) No(4)
• 6 coins of Rs 1, 4 coins of 50 paisa, 8 coins of 25 paisa
  6 * 1 = 6
  4 * 0.5 = 2
  8 * 0.25 = 2
  so total coins of 50 paisa are 4.
• 12 years agoHelpfull: Yes(3) No(0)
• 0.5x+0.25(18-x)=10
  solve this x=22
  so number of 50pes coin is 22
• 12 years agoHelpfull: Yes(0) No(3)
• 2 answers are there.
  first ans ----- (4 #s 1 rupee) + (10 #s 50 paisa) + (4 #s 25 paisa) = 10 rupees (4+10+4=18)
  second ans-- (6 #s 1 rupee) + (4 #s 50 paisa) + (8 #s 25 paisa) = 10 rupees (6+4+8=18)
• 7 years agoHelpfull: Yes(0) No(0)