Question

the cost of a pen is rupees 15 3/5 and that of a pencil is rupees 4 1/4. which one costs more and by how much ?
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Answer 1

Step-by-step explanation:

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)