Answers

2015-09-18T21:41:51+05:30
Let the no. of 10 rupee cards be x
so price is 10x
total price of 5 rupee cards
5×2/3x = 10/3x
total price of 15 rupee cards
15×1/5x=3x
thus
10x+10/3x+3x=245
49x/3=245
x=15

Hope I could help you :)
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