5.
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Cost of a book is 20 more than that of 2 times the pen. Cost of 6 pen and book is 240. What is the cost of a pen and a
book?
Answers
Answered by
6
Answer:
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Step-by-step explanation:
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Answered by
9
Answer:
let the price of the pen be x
and the price of the book b y
then as the price of pen is 2 times more then the book
so the price of book is 2x...
we have given that the price of 6 pens and books is 240....
so here the equation is
2x+20y...this is the answer
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