if Papers-5,Pens-3,Pencils-2, Brought for 105Rs.Then
Papers-10,Pens-7,Pencils-5.Then what is the cost of a Single
Pen?

Answer Posted / chethan

for 5 papers, 3 pens, 2 pencils it is 105 so we can divide
these in to 75+24+6 so that each paper cost 15 rs, each pen
cost 8 rs and each pencils cost 2 rs...
sor the cost of 10 papers, 7 pensils and 5 pencils is 221

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