price of a book is 20 rupees more than that of a pen. Appu bought 3 books and 2 pens and he had to pay 110 rupees what is the price of each?
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Answer:
soo in this we have:-
1. book=20rs
2.pen=book price -110
so, 3*20=60
pen price=60-110=50
so, price of each
pen=25rs
and
register=20
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