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[" A shopkeeper has "3" varieties of pen...

[" A shopkeeper has "3" varieties of pens "'A',B'" and "'C'" .Meenu purchased "1" pen "],[" of each variety for a total of "bar(z)21." Jeevan purchased "4" pens of 'A' variety,"],[3" pens of "'B'" variety and "2" pens of 'C'variety for "bar(z)60." While Shikha purchased "],[6" pens of 'A'variety,"2" pens of 'B' variety and 3pens of "'C" variety for "¥70" ."],[" Using matrix method,find cost of each variety of pen."]

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