For the publisher to earn a profit of 25% S.P = 125% of C.P.
Also Transportation Cost = 10% of C.P.
Let the S.P of 5500 books be Rs. x.
Then, 10 : 125 = 82500 : x ⇒ x = Rs.  = Rs. 1031250.
⸫ S.P. of one book = Rs. = Rs. 187.50. 

Central angle of 108⁰ =  of the total expenditure= 30% of the total expenditure.
From the pie – chart it is clear that:
Binding Cost + Transportation Cost = (20% + 10%) of the total expenditure
= 30% of the total expenditure
⸫ Binding Cost and Transportation Cost together have a central angle of 108⁰. 

Clearly, S.P. of the book = 105% of C.P.
Let the selling price of this edition (of 12500 books) be Rs. x.
Then, 15 : 105 = 281250 : x ⇒ x = Rs.  = Rs. 1968750.
⸫ S.P of one book = Rs.  = Rs. 157.50

Central angle corresponding to Royalty = (15% of 360)°= 54° 

Clearly, marked price of the book = 120% of C.P
Also, cost of paper = 25% of C.P.
Let the cost of paper for a single book be Rs. n.
Then, 120 : 25 = 180 : n ⇒ n = Rs.  = Rs. 37.50

Let the amount of Royalty to be paid for these books be Rs. p.

Then, 20 : 15 = 30600 : r ⇒ r = Rs. = Rs. 22950.