SOLUTION: 1. A box contains ten and five rupee currencies. The total number of currencies is 12 and the total value of the money is Rs.95. Find the number of currencies in each type. 2. T

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: 1. A box contains ten and five rupee currencies. The total number of currencies is 12 and the total value of the money is Rs.95. Find the number of currencies in each type. 2. T      Log On


   

Question 159132: 1. A box contains ten and five rupee currencies. The total number of currencies is 12 and the total value of the money is Rs.95. Find the number of currencies in each type.
2. Two persons A and B purchased 2kg of rice and 3kg of wheat for Rs.86, 4 kg of rice and 5kg of wheat for Rs. 140. Find the price of 1 kg of wheat.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
f+t=12 or f=12-t
5f+10t=95
5(12-t)+10t=95
60-5t+10t=95
5t=95-60
5t=35
t=35/5
t=7 ten rupee bills
f+7=12
f=12-7
f=5 five rupee bills
Proof:
5*5+7*10=95
25+70=95
95=95