The price of 28 pens and 48 pencils are 425 rupess then what is the price of 77 pens and 110 penciles.
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Cost of one pen =Rs.15
Cost of x pens =15×x=Rs.15x
Cost of 1 pencil =Rs.3
Cost of y pencils =3×y=3y
Therefore,
Total cost of x pens and y pencils =15x+3y=3(5x+y)
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Step-by-step explanation:
let the cost of one pen be x and one pencil be y
28x+48y=425-----------eq1
77x+110y=?
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