The cost of one pen , one chalk and one pencil is 8 Rs., the cost of 1 pen minus the cost
of 2 chalk plus the cost of 2 pencils is Rs. 6 , the cost of 3 pen plus the cost of 5 chalk
minus the cost of 7 pencils is 14 Rs. Find the rate of each using matrix method.
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a very precious thing all people have on finger and his shape is circle
a very precious all people have on finger and his shape is circle
a very precious thing all people have on finger and his shape is circlethingthing
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