The correct option is D 1427%
Let the printed price be Rsx
Then for the distributor
The, Cost Price he buys the books from the publisher after 30 % discount =Rs0.7x
And Selling Price after giving 20 % discount to the bookseller =Rs0.8x
So Profit % for the distributor =S.P−C.P.C.P.×100=0.8x−0.7x0.7x×100=1007=1427 %