The price of a pen and a book is 100 rupees the price of a book is 20 rupees more than that of a pen. What is the price of each
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Step-by-step explanation:
Let the price of pen be x.
Book=20+x
According to condition,
20+x+x=100
20+2x=100
2x=100-20
x=80÷2
x=40
price of pen=x=40
price of book=20+x=20+40
=60
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