SOLUTION: IN a piggy bank the no. of Rs.5. coin. is 5 time of Rs. 10 coin and total coin is 120 coin what is the amount in the piggy bank
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Question 1060815: IN a piggy bank the no. of Rs.5. coin. is 5 time of Rs. 10 coin and total coin is 120 coin what is the amount in the piggy bank
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
n = number of Rs. 5 coins
d = number of Rs. 10 coins
n = 5d
n + d = 120
Substitute the first equation into the second.
5d + d = 120
6d = 120
d = 20
There are 100 Rs. 5 coins and 20 Rs. 10 coins.
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