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Galathea National Park is a national park located in the Union Territory of Andaman and Nicobar Islands, India. It is located on the island of Great Nicobar in the Nicobar Islands, which lie in the eastern Indian Ocean.
The average cost of 5 chairs is Rs. 12000. The average cost decrease by 12% when one more chair is included. What is the cost price of the 6th
Akshay bought 25 notebooks for Rs.1260 from shop A and 13 notebooks for Rs.1210 from shop B. What is the average price he paid per book?