Question: In March 2011, EF Public Library purchased a total of 15 new books published in 2010 with a total expenditure of Rs. 4500. Of these books, 13 books were purchased from MN Distributors, while the remaining two were purchased from UV Publishers. It is observed that one-sixth of the average price of all the 15 books purchased is equal to one-fifth of the average price of the 13 books obtained from MN Distributors. Of the two books obtained from UV Publishers, if one-third of the price of one volume is equal to one-half of the price of the other, then the price of the two books are
Average price of 15 books = 4500/15 = Rs. 300
Let the average price of 13 books purchased from MN distributors be a.
∴ Price of books purchased from UV Publishers = 4500 – 3250 = Rs. 1250
Let the two books purchased from UV publishers cost Rs. x and Rs. y.
Hence, option (c).