SOLUTION: The total number of Rs.5 and Rs10 coins in my bag is 20.If i have Rs 145 in my bag.Lets calculate the number of coins of each kind i had in my bag.
Algebra.Com
Question 1051175: The total number of Rs.5 and Rs10 coins in my bag is 20.If i have Rs 145 in my bag.Lets calculate the number of coins of each kind i had in my bag.
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 + D = 20
5N + 10D = 145
Multiply the first equation by 10.
10N + 10D = 200
5N + 10D = 145
Subtract to get 5N = 55, so N = 11.
There are 11 five-Rs. coins and 9 ten-Rs. coins.
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