if 15 book cost is 70 how many 12 book cost
Answers
Answered by
45
Cost of 15 books = 70
So, cost of 1 book = 70/15
=14/3
So,cost of 12 books = 14/3 x 12
=56
So, cost of 1 book = 70/15
=14/3
So,cost of 12 books = 14/3 x 12
=56
Answered by
27
ANSWER WITH FULL EXPLANATION
You have not mentioned the currency, so I am taking it as Rupees.
I am solving this question using unitary method.
Cost of 15 books = Rs. 70
∴ Cost of 1 book = Rs.
= Rs. 
∴ Cost of 12 books =
= Rs. 56.
∴ The cost of 12 books is Rs. 56.
Hope this may help you.
If you have any doubt, then you can ask me in the comments.
You have not mentioned the currency, so I am taking it as Rupees.
I am solving this question using unitary method.
Cost of 15 books = Rs. 70
∴ Cost of 1 book = Rs.
∴ Cost of 12 books =
∴ The cost of 12 books is Rs. 56.
Hope this may help you.
If you have any doubt, then you can ask me in the comments.
pinakimandal53:
Please don't mind. I have just used Rupees in this answer as the currency, so that you understand that what does this question mean.
Any doubt?
Please mark this answer as the brainliest, if it helps.
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