A man has only 20-paise and 25-paise coins in a bag. If he has 50 coins in all totaling to Rs.11.25, then the number of 20-paise coins is
(1) 28
(2) 27 1
(3)26
(4) 25

• ans:25
  
  x=20p;y=25p;
  
  x+y=50;
  0.20x+0.25y=11.25;
  
  25x+25y=1250;
  20x+25y=1125;
  
  =>x=25;
• 12 years agoHelpfull: Yes(23) No(7)
• ANS: 25
  
  here, we have 20-paise and 25-paise coins in a bag, If he has 50 coins
  => x+y=50
  
  totaling to Rs.11.25
  => 20x+25y=1125
  
  solving we get, x=25
• 12 years agoHelpfull: Yes(4) No(2)
• 25*.20=5
  25*.25=6.25
  5+6.25=11.25
• 12 years agoHelpfull: Yes(3) No(2)
• 20x+25y=11.25rs/-=1125paise
  x+y=50
  x=y=25
• 12 years agoHelpfull: Yes(2) No(2)
• 25*20p=5rs;25*25p=6.25rs so,5+6.25=11.25
• 12 years agoHelpfull: Yes(1) No(1)
• let x be the no. of 25 paisa coin .
  25*x + 20*(50-x)=1125
  x=25.
  no. of 20 paisa coin is 25.
• 8 years agoHelpfull: Yes(1) No(0)
• option 4 25
  
  50*.25-11.25/0.25-.20=25
• 12 years agoHelpfull: Yes(0) No(2)
• number of 20 paise coins are 25.
• 12 years agoHelpfull: Yes(0) No(3)
• answers: 25
  
  
• 12 years agoHelpfull: Yes(0) No(3)
• by checking the options 28*20p=5.60rs 11.25-5.60=5.85rs 50-28=22 22*25p=5.50rs it`s not satisfy
  
  25*20p=5.00rs 11.25-5.00=6.25rs remaining 25*25p=6.25rs it satisfy..
  
  
• 11 years agoHelpfull: Yes(0) No(0)
• Correct answer is (4)
  Assume there are p 20 paise coins and hence we will have (50-p) 25 paise coins as total number of coins are 50. Total amount in the bag is 11.25 rupees and it is equal to 11.25 x100=1125 paise.
  Hence 20p+25( 50-p )=1125
  solving we get p=25.
  There are 25 20-paise coins.
• 7 years agoHelpfull: Yes(0) No(0)