Mathematics, 11.12.2020 09:40 memeE15
total cons of the 6 books and 7 pens is rupees 79 and the total cost of 7 book and six pen is rupees 77 find the cost of one book and two pen
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total cons of the 6 books and 7 pens is rupees 79 and the total cost of 7 book and six pen is rupees...
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