If the cost of 3 books is ₹90, then find the cost of 12 books. – InterviewSolution

1.

If the cost of 3 books is ₹90, then find the cost of 12 books.

Answer» ONG>Answer:

cost of 1 BOOK = 90/3

= 30

cost of 12 BOOKS = 12*30

= 360

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