Question

the cost of 18 books is rs 672 find the cost of 15 books ​

Answer 1

Answer:

the cost of 15 books is 559.9

Step-by-step explanation:

The cost of 1 book =672/18

The cost of 15 books=672/×15=559.9

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Answer 2

Answer:

1680

Step-by-step explanation:

18 books =672

1 book =672/18

15 books=672/18*15

=560

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