Question

The cost of 3 books is Rs.120 , then what is the cost of 15 books.
The above sum can be solved by using :
i) Direct proportion ii) inverse proportion iii) direct and inverse
proportion iv) not direct proportion​

Answer 1

Answer:

Direct proportion

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

i) Direct proportion

because as no. of books increase, cost of the book also increases....

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