SOLUTION: A bag contains Rs. 64, having only 2 rupee and 5 rupee coins. If the ratio of amount of money of these two types of coins is 3:5 then total number of coins is-

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A bag contains Rs. 64, having only 2 rupee and 5 rupee coins. If the ratio of amount of money of these two types of coins is 3:5 then total number of coins is-      Log On


   

Question 822188: A bag contains Rs. 64, having only 2 rupee and 5 rupee coins. If the ratio of amount of money of these two types of coins is 3:5 then total number of coins is-
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
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2x + 5y = 64
2x/5y = 3/5
2x = (3/5)5y
2x = 3y
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put the system of linear equations into standard form
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2x + 5y = 64
2x - 3y = 0
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answer:
x= 2-rupee coins = 12
y= 5-rupee coins = 8
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