The cost of 9 books is Rs 819. Find the cost of 3 books.
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Step-by-step explanation:
the cost of 9 book =Rs819
the cost 1. book =819/9
=Rs 91
therefore tje cost of tree vook =3×91
= Rs 273
Answered by
3
Answer:
=Cost of 9 books=819.
=Cost of 1 books=819/9=91.
=Cost of 3 books =91×3=273.
Step-by-step explanation:
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