Answers

2016-01-28T10:04:34+05:30
Let the no. of 10 paise coins be x and the no. of 50 paise  coins be y,
According to question, total no. of coins = 70
or, x + y = 70
or, x = 70-y ............ (i)

Now total value of money is Rs. 19 (1900 paise)
or, 10x + 50y = 1900
or, 10(70-y) + 50y = 1900                  [Putting the value of x from eqn (i)]
or, 700 - 10y + 50y = 1900
or, 40y = 1200
or, y = 30 
Therefore, there are 30 fifty paisa coins.

And, x = 70-y 
or, x = 70-30 = 40
Hence, there are 40 ten paisa coins.

Hope that helps !!
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