Anil purchased some notebooks and pens. the price of each pen is rupees 15 and the price of each notebook is rupees 40. the number of notebooks is one third of the number of pens. anil paid a total of rupees 425. how many notebooks and pens did he purchases?
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Step-by-step explanation:
Given total cost of 5 pens and 10 pencil = Rs 30
5 pens + 10 pencils = 30
pens + 2 pencils = 1
also given pen cost 3 more than a pencil
i.e, pen = 3 + pencil.
pen - pencil = 3
pens + 2 pencils = 6
_______________
-3 pencils = -3
pencils = 1
pen - 1 = 3
pen = 4
cost of pencils = 1 cost of pen = 4
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