Answers

2015-06-15T09:27:09+05:30
Cost of pencil is -x
cost of pen is -y
3x+5y=70
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2015-06-15T09:49:27+05:30
LET THE COST OF PENCIL BE X AND,
LET THE COST OF PENS BE Y 
SO, 3X+5Y=70 RS.
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