 
<translate> Nate ya karanta shafuffuka 400 x 20 / 100 = 80. Don haka, har yanzu yana bukatar karanta 400 - 80 = 320 shafuka don gama littafin. Amsar ƙarshe: 320. <eng> Nate had read 400 x 20 / 100 = 80 pages. So, he still needs to read 400 - 80 = 320 pages to finish the book.
The final answer: 320. 