Question

A shopkeeper has 3 varieties of pens ‘A’, ‘B’ and ‘C’. Meenu purchased 1 pen of each variety for a total of Rs 21. Jeevan purchased 4 pens of ‘A’ variety, 3 pens of ‘B’ variety and 2 pens of ‘C’ variety for Rs 60. While Shikha purchased 6 pens of’A’ variety, 2 pens of ‘W variety and 3 pens of ‘C’ variety for Rs 70. Using matrix method, find cost of each variety of pen.
Solution.

Answer 1

Cost of variety A pen costs ₹5,Cost of variety B costs ₹8 and the cost of variety C pen costs ₹8.