Cost of 4 pen, 6 note books and 9 files ...

Cost of 4 pen, 6 note books and 9 files is Rs. 305. Cost of 3 pens,4 notebooks and 2 files is Rs. 145. What is the cost (in Rs) of 5 pens, 8 notebooks and 16 files?

a) 415

b) 465

c) 440

d) Cannot be determined

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