Cost of 2 pencils and 3 erasers is 9 rupees where as cost of 4 pencils and 6 erasers is 18 rupees.Find the cost of each pencil and eraser in substitution method and verify it in criss cross method.
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infinitely many solutions
here x and y will not have a definite solutions.
because here in both the equations a1=a2, b1=b2 and c1=c2
here x and y will not have a definite solutions.
because here in both the equations a1=a2, b1=b2 and c1=c2
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Pencils c.P 13.5
Erasers c.P12
Erasers c.P12
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